Vulnerability-Lookup

ALSA-2026:30848

Vulnerability from osv_almalinux – Published: 2026-06-29 00:00 – Updated: 2026-06-30 09:39 – Source website

Summary

Important: kernel security, bug fix, and enhancement update

Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)
kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)
kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)
kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)
kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054)
kernel: RDMA/iwcm: Fix workqueue list corruption by removing work_list (CVE-2026-45898)
kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path (CVE-2026-46189)
kernel: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() (CVE-2026-46176)
kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316)

Bug Fix(es) and Enhancement(s):

[AlmaLinux-9.8.z]: Update the mlx5 drivers to v6.19 (JIRA:AlmaLinux-169057)
iavf: during POD churn vlan filters may not be added for a vlan interface, spoofchk drops subsequent packets [almalinux-9.8.z] (JIRA:AlmaLinux-172993)
nf_conntrack_sctp: vtag corruption with late INIT in ESTABLISHED state across conntrack zones [almalinux-9.8.z] (JIRA:AlmaLinux-178273)
sched/fair: Skip sched_balance_running cmpxchg when balance is not due [almalinux-9.8.z] (JIRA:AlmaLinux-182776)
[REGRESSION] ISST-Spyre: Jenkins workload causes soft lock warning to appear on screen. Workload hangs. [almalinux-9.8.z] (JIRA:AlmaLinux-183183)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:30848	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-31488	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43038	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43329	REPORT
	https://access.redhat.com/security/cve/CVE-2026-45898	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46054	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46090	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46176	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46189	REPORT
	https://bugzilla.redhat.com/2460619	REPORT
	https://bugzilla.redhat.com/2464397	REPORT
	https://bugzilla.redhat.com/2468124	REPORT
	https://bugzilla.redhat.com/2481980	REPORT
	https://bugzilla.redhat.com/2482025	REPORT
	https://bugzilla.redhat.com/2482031	REPORT
	https://bugzilla.redhat.com/2482588	REPORT
	https://bugzilla.redhat.com/2482594	REPORT
	https://errata.almalinux.org/9/ALSA-2026-30848.html	ADVISORY

JSON

To clipboard

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  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.  \n\nSecurity Fix(es):  \n\n  * kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)\n  * kernel: ipv6: icmp: clear skb2-\u003ecb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038)\n  * kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)\n  * kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)\n  * kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054)\n  * kernel: RDMA/iwcm: Fix workqueue list corruption by removing work_list (CVE-2026-45898)\n  * kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path (CVE-2026-46189)\n  * kernel: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() (CVE-2026-46176)\n  * kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316)\n\nBug Fix(es) and Enhancement(s):  \n\n  * [AlmaLinux-9.8.z]: Update the mlx5 drivers to v6.19 (JIRA:AlmaLinux-169057)\n  * iavf: during POD churn vlan filters may not be added for a vlan interface, spoofchk drops subsequent packets [almalinux-9.8.z] (JIRA:AlmaLinux-172993)\n  * nf_conntrack_sctp: vtag corruption with late INIT in ESTABLISHED state across conntrack zones [almalinux-9.8.z] (JIRA:AlmaLinux-178273)\n  * sched/fair: Skip sched_balance_running cmpxchg when balance is not due [almalinux-9.8.z] (JIRA:AlmaLinux-182776)\n  * [REGRESSION] ISST-Spyre: Jenkins workload causes soft lock warning to appear on screen. Workload hangs. [almalinux-9.8.z] (JIRA:AlmaLinux-183183)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:30848",
  "modified": "2026-06-30T09:39:19Z",
  "published": "2026-06-29T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:30848"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31488"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43038"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43329"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-45898"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46054"
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    {
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      "url": "https://access.redhat.com/security/cve/CVE-2026-46090"
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      "url": "https://access.redhat.com/security/cve/CVE-2026-46176"
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      "url": "https://access.redhat.com/security/cve/CVE-2026-46189"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2460619"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2464397"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2468124"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2481980"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482025"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482031"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482588"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482594"
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      "url": "https://errata.almalinux.org/9/ALSA-2026-30848.html"
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    "CVE-2026-43038",
    "CVE-2026-43329",
    "CVE-2026-46090",
    "CVE-2026-46054",
    "CVE-2026-45898",
    "CVE-2026-46189",
    "CVE-2026-46176",
    "CVE-2026-46316"
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update"
}

CVE-2026-31488 (GCVE-0-2026-31488)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-08-17 12:04

Title

drm/amd/display: Do not skip unrelated mode changes in DSC validation

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Do not skip unrelated mode changes in DSC validation Starting with commit 17ce8a6907f7 ("drm/amd/display: Add dsc pre-validation in atomic check"), amdgpu resets the CRTC state mode_changed flag to false when recomputing the DSC configuration results in no timing change for a particular stream. However, this is incorrect in scenarios where a change in MST/DSC configuration happens in the same KMS commit as another (unrelated) mode change. For example, the integrated panel of a laptop may be configured differently (e.g., HDR enabled/disabled) depending on whether external screens are attached. In this case, plugging in external DP-MST screens may result in the mode_changed flag being dropped incorrectly for the integrated panel if its DSC configuration did not change during precomputation in pre_validate_dsc(). At this point, however, dm_update_crtc_state() has already created new streams for CRTCs with DSC-independent mode changes. In turn, amdgpu_dm_commit_streams() will never release the old stream, resulting in a memory leak. amdgpu_dm_atomic_commit_tail() will never acquire a reference to the new stream either, which manifests as a use-after-free when the stream gets disabled later on: BUG: KASAN: use-after-free in dc_stream_release+0x25/0x90 [amdgpu] Write of size 4 at addr ffff88813d836524 by task kworker/9:9/29977 Workqueue: events drm_mode_rmfb_work_fn Call Trace: <TASK> dump_stack_lvl+0x6e/0xa0 print_address_description.constprop.0+0x88/0x320 ? dc_stream_release+0x25/0x90 [amdgpu] print_report+0xfc/0x1ff ? srso_alias_return_thunk+0x5/0xfbef5 ? __virt_addr_valid+0x225/0x4e0 ? dc_stream_release+0x25/0x90 [amdgpu] kasan_report+0xe1/0x180 ? dc_stream_release+0x25/0x90 [amdgpu] kasan_check_range+0x125/0x200 dc_stream_release+0x25/0x90 [amdgpu] dc_state_destruct+0x14d/0x5c0 [amdgpu] dc_state_release.part.0+0x4e/0x130 [amdgpu] dm_atomic_destroy_state+0x3f/0x70 [amdgpu] drm_atomic_state_default_clear+0x8ee/0xf30 ? drm_mode_object_put.part.0+0xb1/0x130 __drm_atomic_state_free+0x15c/0x2d0 atomic_remove_fb+0x67e/0x980 Since there is no reliable way of figuring out whether a CRTC has unrelated mode changes pending at the time of DSC validation, remember the value of the mode_changed flag from before the point where a CRTC was marked as potentially affected by a change in DSC configuration. Reset the mode_changed flag to this earlier value instead in pre_validate_dsc(). (cherry picked from commit cc7c7121ae082b7b82891baa7280f1ff2608f22b)

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-1288 - Improper Validation of Consistency within Input

Assigner

Linux mitre root

References

19 references

URL	Tags
https://git.kernel.org/stable/c/da1d0ed31e9802fd9…
https://git.kernel.org/stable/c/21159d8b335a6b9f4…
https://git.kernel.org/stable/c/10862e344b4d64346…
https://git.kernel.org/stable/c/8a5edc97fd9c6415f…
https://git.kernel.org/stable/c/111208b5b7ebcdadb…
https://git.kernel.org/stable/c/aed3d041ab061ec8a…
https://access.redhat.com/security/cve/CVE-2026-31488	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2460619	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:55445	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53330	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:47739	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:43231	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:44385	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27353	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:47869	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27354	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:47632	vendor-advisoryx_refsource_REDHAT

Impacted products

16 products

Vendor	Product	Version
Linux	Linux	Affected: 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b , < da1d0ed31e9802fd99384f43cc63678a5a11cb41 (git) Affected: 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b , < 21159d8b335a6b9f44cbb506733013a902ae2da4 (git) Affected: 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b , < 10862e344b4d6434642a48c87d765813fc0b0ba7 (git) Affected: 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b , < 8a5edc97fd9c6415ff2eff872748439a97e3c3d8 (git) Affected: 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b , < 111208b5b7ebcdadb3f922cc52d8425f0fa91b33 (git) Affected: 17ce8a6907f77b7ac97ddaa071d8a1f6e06ce85b , < aed3d041ab061ec8a64f50a3edda0f4db7280025 (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.46.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.98.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.136.1.rt7.477.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.136.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.156.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.156.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.183.1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.183.1.rt14.468.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::nfv
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.139.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.129.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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              "value": "AV:L - The vulnerable path is reached through local DRM/KMS ioctls, especially DRM_IOCTL_MODE_ATOMIC on an amdgpu primary device, not through network input.\nAC:L - On an affected AMD display setup with DSC/MST-capable outputs, the bad state transition is deterministically triggered by a crafted atomic modeset combining MST/DSC changes with an unrelated mode change.\nPR:L - The attacker must be a local DRM client with access to the primary node and current DRM master capability; this is attainable by an unprivileged graphical-session user and does not require real root.\nUI:N - Once the attacker has the local DRM access, exploitation is driven by ioctls and later framebuffer/CRTC teardown without requiring a separate victim action.\nS:U - The corruption occurs within the kernel display driver and affects the same kernel security authority, with no VM escape or cross-scope boundary involved.\nC:H - The bug creates a use-after-free of a kernel dc_stream_state object, and kernel UAF memory corruption is defensibly capable of exposing arbitrary kernel memory.\nI:H - The observed failure is a write through kref_put to a freed object, and a reclaimable kernel UAF write can be shaped into memory corruption or control-flow compromise.\nA:H - The commit documents a KASAN use-after-free in dc_stream_release, and this class of kernel memory corruption can reliably crash or destabilize the system."
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          "url": "https://git.kernel.org/stable/c/21159d8b335a6b9f44cbb506733013a902ae2da4"
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          "url": "https://git.kernel.org/stable/c/10862e344b4d6434642a48c87d765813fc0b0ba7"
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          "url": "https://git.kernel.org/stable/c/8a5edc97fd9c6415ff2eff872748439a97e3c3d8"
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          "url": "https://git.kernel.org/stable/c/111208b5b7ebcdadb3f922cc52d8425f0fa91b33"
        },
        {
          "url": "https://git.kernel.org/stable/c/aed3d041ab061ec8a64f50a3edda0f4db7280025"
        }
      ],
      "title": "drm/amd/display: Do not skip unrelated mode changes in DSC validation",
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        "engine": "bippy-1.2.0"
      }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31488",
    "datePublished": "2026-04-22T13:54:12.963Z",
    "dateReserved": "2026-03-09T15:48:24.101Z",
    "dateUpdated": "2026-08-17T12:04:49.431Z",
    "state": "PUBLISHED"
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}

CVE-2026-43038 (GCVE-0-2026-43038)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-09-08 08:48

Title

ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

Summary

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() Sashiko AI-review observed: In ip6_err_gen_icmpv6_unreach(), the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inet_skb_parm. When skb is cloned into skb2 and passed to icmp6_send(), it uses IP6CB(skb2). IP6CB interprets the IPv4 inet_skb_parm as an inet6_skb_parm. The cipso offset in inet_skb_parm.opt directly overlaps with dsthao in inet6_skb_parm at offset 18. If an attacker sends a forged ICMPv4 error with a CIPSO IP option, dsthao would be a non-zero offset. Inside icmp6_send(), mip6_addr_swap() is called and uses ipv6_find_tlv(skb, opt->dsthao, IPV6_TLV_HAO). This would scan the inner, attacker-controlled IPv6 packet starting at that offset, potentially returning a fake TLV without checking if the remaining packet length can hold the full 18-byte struct ipv6_destopt_hao. Could mip6_addr_swap() then perform a 16-byte swap that extends past the end of the packet data into skb_shared_info? Should the cb array also be cleared in ip6_err_gen_icmpv6_unreach() and ip6ip6_err() to prevent this? This patch implements the first suggestion. I am not sure if ip6ip6_err() needs to be changed. A separate patch would be better anyway.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.3 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H

CWE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

Linux mitre root

References

32 references

URL	Tags
https://git.kernel.org/stable/c/c438ba010171b70ba…
https://git.kernel.org/stable/c/0452b6526b2f54b24…
https://git.kernel.org/stable/c/a4437faf135da293d…
https://git.kernel.org/stable/c/3d5127d998de617b1…
https://git.kernel.org/stable/c/e41953e7d118e2702…
https://git.kernel.org/stable/c/a2edbb6393972a021…
https://git.kernel.org/stable/c/1ceeebd5bd6d855b1…
https://git.kernel.org/stable/c/86ab3e55673a7a49a…
https://access.redhat.com/security/cve/CVE-2026-43038	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2464397	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:24343	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30129	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:22940	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:23237	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:23224	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55618	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25121	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55762	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26535	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25533	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:22964	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55761	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55837	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56224	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56225	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55763	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25120	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:22900	vendor-advisoryx_refsource_REDHAT
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

32 products

Vendor	Product	Version
Linux	Linux	Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < c438ba010171b70bad22fc18b1d5bdc3627476e8 (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < 0452b6526b2f54b2413b9cb4ff1ea2ac542c99c7 (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < a4437faf135da293d16fcc4cc607316742bd0ebb (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < 3d5127d998de617b130aae96b138dba22ac6a8a7 (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < e41953e7d118e2702bcb217879c173d9d1d3cd4e (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < a2edbb6393972a02114b6003953a5cef3104fada (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < 1ceeebd5bd6d855b17a5df625109bfe29129d7cf (git) Affected: ca15a078bd907df5fc1c009477869c5cbde3b753 , < 86ab3e55673a7a49a841838776f1ab18d23a67b5 (git)
Linux	Linux	Affected: 3.13 Unaffected: 0 , < 3.13 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.28.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.77.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.132.1.rt7.473.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.132.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-305.194.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-305.194.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-372.195.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-372.195.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.145.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.145.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.174.1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.174.1.rt14.459.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::nfv
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	cpe:/o:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.129.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	cpe:/o:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.119.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	cpe:/o:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.5 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.5 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.5 , < * (custom)

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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: icmp: clear skb2-\u003ecb[] in ip6_err_gen_icmpv6_unreach()\n\nSashiko AI-review observed:\n\n  In ip6_err_gen_icmpv6_unreach(), the skb is an outer IPv4 ICMP error packet\n  where its cb contains an IPv4 inet_skb_parm. When skb is cloned into skb2\n  and passed to icmp6_send(), it uses IP6CB(skb2).\n\n  IP6CB interprets the IPv4 inet_skb_parm as an inet6_skb_parm. The cipso\n  offset in inet_skb_parm.opt directly overlaps with dsthao in inet6_skb_parm\n  at offset 18.\n\n  If an attacker sends a forged ICMPv4 error with a CIPSO IP option, dsthao\n  would be a non-zero offset. Inside icmp6_send(), mip6_addr_swap() is called\n  and uses ipv6_find_tlv(skb, opt-\u003edsthao, IPV6_TLV_HAO).\n\n  This would scan the inner, attacker-controlled IPv6 packet starting at that\n  offset, potentially returning a fake TLV without checking if the remaining\n  packet length can hold the full 18-byte struct ipv6_destopt_hao.\n\n  Could mip6_addr_swap() then perform a 16-byte swap that extends past the end\n  of the packet data into skb_shared_info?\n\n  Should the cb array also be cleared in ip6_err_gen_icmpv6_unreach() and\n  ip6ip6_err() to prevent this?\n\nThis patch implements the first suggestion.\n\nI am not sure if ip6ip6_err() needs to be changed.\nA separate patch would be better anyway."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - An unauthenticated remote attacker can send crafted IPv4 ICMP error packets with IPv4 options to an affected IPv6-over-IPv4/SIT or IPv6 GRE tunnel endpoint. The vulnerable path is reached through normal network packet receive and ICMP error dispatch, not through a local syscall.\nAC:L - Given an affected deployment with the tunnel path and IPv6 MIP6 support present, the attacker controls the ICMP payload, IPv4 CIPSO option placement, inner IPv6 layout, and fake HAO/TLV contents. There is no race or condition outside the attacker\u0027s control needed to trigger the stale skb control-buffer interpretation.\nPR:N - The target-side code is reachable by receiving network packets and performs no authentication or privilege check before dispatching the ICMP error to the tunnel error handler. Any needed packet crafting privileges are on the attacker\u0027s own system, not privileges on the vulnerable target.\nUI:N - No victim user action is required. The vulnerable code runs during kernel processing of received network packets.\nS:U - The impact is within the vulnerable kernel\u0027s own security authority. This is not a VM escape, IOMMU bypass, or other cross-scope boundary violation.\nC:H - The malformed HAO handling can perform a 16-byte swap that reads beyond packet data into skb_shared_info or adjacent skb metadata. As a network-reachable memory corruption primitive, this is defensibly high confidentiality impact.\nI:H - The same swap writes 16 attacker-controlled bytes from the IPv6 source address beyond packet data into skb_shared_info or adjacent skb metadata. This is an out-of-bounds write with potential for kernel heap/control-flow exploitation.\nA:H - Corrupting skb_shared_info fields such as fragment counters or pointers can readily crash or destabilize the kernel. A remote attacker can repeat crafted packets to cause denial of service."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:25:28.341Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c438ba010171b70bad22fc18b1d5bdc3627476e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/0452b6526b2f54b2413b9cb4ff1ea2ac542c99c7"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4437faf135da293d16fcc4cc607316742bd0ebb"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d5127d998de617b130aae96b138dba22ac6a8a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/e41953e7d118e2702bcb217879c173d9d1d3cd4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/a2edbb6393972a02114b6003953a5cef3104fada"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ceeebd5bd6d855b17a5df625109bfe29129d7cf"
        },
        {
          "url": "https://git.kernel.org/stable/c/86ab3e55673a7a49a841838776f1ab18d23a67b5"
        }
      ],
      "title": "ipv6: icmp: clear skb2-\u003ecb[] in ip6_err_gen_icmpv6_unreach()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43038",
    "datePublished": "2026-05-01T14:15:35.986Z",
    "dateReserved": "2026-05-01T14:12:55.978Z",
    "dateUpdated": "2026-09-08T08:48:39.911Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-43329 (GCVE-0-2026-43329)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:31 – Updated: 2026-09-15 12:04

Title

netfilter: flowtable: strictly check for maximum number of actions

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: * ethernet mangling (4 payload actions, 2 for each ethernet address) * SNAT (4 payload actions) * DNAT (4 payload actions) * Double VLAN (4 vlan actions, 2 for popping vlan, and 2 for pushing) for QinQ. * Redirect (1 action) Which makes 17, while the maximum is 16. But act_ct supports for tunnels actions too. Note that payload action operates at 32-bit word level, so mangling an IPv6 address takes 4 payload actions. Update flow_action_entry_next() calls to check for the maximum number of supported actions. While at it, rise the maximum number of actions per flow from 16 to 24 so this works fine with IPv6 setups.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

Linux mitre root

References

40 references

URL	Tags
https://git.kernel.org/stable/c/ead66c77303f760f6…
https://git.kernel.org/stable/c/fe9018d3e94329f19…
https://git.kernel.org/stable/c/5382bb03e9c33b089…
https://git.kernel.org/stable/c/57c78bd2e2dd08897…
https://git.kernel.org/stable/c/504c9456699dcf4d1…
https://git.kernel.org/stable/c/879959a7a2be814dd…
https://git.kernel.org/stable/c/76522fcdbc3a02b56…
https://access.redhat.com/security/cve/CVE-2026-43329	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2468124	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:47702	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54187	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:43252	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56911	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56853	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:47727	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:44230	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:44231	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:44259	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:44262	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40764	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33215	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:23329	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34095	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27713	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34094	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55618	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26427	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55762	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:35896	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33899	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:35863	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55761	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55837	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56224	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56225	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55763	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26428	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33900	vendor-advisoryx_refsource_REDHAT

Impacted products

39 products

Vendor	Product	Version
Linux	Linux	Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < ead66c77303f760f6c30be96e2e20d5a77cef614 (git) Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < fe9018d3e94329f1951b00805a8640bc06f56ead (git) Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < 5382bb03e9c33b089d60788478b922a2dca284cc (git) Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < 57c78bd2e2dd08897acd35b2bf8bcef322e36f5e (git) Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < 504c9456699dcf4d15195ef34a0fa94a80bfc877 (git) Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < 879959a7a2be814dd57568655eafa3d8f4d0309e (git) Affected: c29f74e0df7a02b8303bcdce93a7c0132d62577a , < 76522fcdbc3a02b568f5d957f7e66fc194abb893 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.20.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.84.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.134.1.rt7.475.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.134.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-305.197.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-305.197.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-372.198.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-372.198.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.150.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.150.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.178.1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.178.1.rt14.463.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::nfv
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	cpe:/o:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.134.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	cpe:/o:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.125.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	cpe:/o:redhat:rhel_eus:9.6
Red Hat	Red Hat OpenShift Container Platform 4.12	Unaffected: 412.86.202607211933-0 , < * (rpm) cpe:/a:redhat:openshift:4.12::el8
Red Hat	Red Hat OpenShift Container Platform 4.13	Unaffected: 413.92.202608111330-0 , < * (rpm) cpe:/a:redhat:openshift:4.13::el9
Red Hat	Red Hat OpenShift Container Platform 4.14	Unaffected: 414.92.202607210313-0 , < * (rpm) cpe:/a:redhat:openshift:4.14::el9
Red Hat	Red Hat OpenShift Container Platform 4.15	Unaffected: 415.92.202608180329-0 , < * (rpm) cpe:/a:redhat:openshift:4.15::el9
Red Hat	Red Hat OpenShift Container Platform 4.16	Unaffected: 416.94.202608150307-0 , < * (rpm) cpe:/a:redhat:openshift:4.16::el9
Red Hat	Red Hat OpenShift Container Platform 4.17	Unaffected: 417.94.202607240132-0 , < * (rpm) cpe:/a:redhat:openshift:4.17::el9
Red Hat	Red Hat OpenShift Container Platform 4.18	Unaffected: 418.94.202607211754-0 , < * (rpm) cpe:/a:redhat:openshift:4.18::el9
Red Hat	Red Hat OpenShift Container Platform 4.19	Unaffected: 4.19.9.6.202607220857-0 , < * (rpm) cpe:/a:redhat:openshift:4.19::el9
Red Hat	Red Hat OpenShift Container Platform 4.20	Unaffected: 4.20.9.6.202607221038-0 , < * (rpm) cpe:/a:redhat:openshift:4.20::el9
Red Hat	Red Hat OpenShift Container Platform 4.21	Unaffected: 4.21.9.6.202607221317-0 , < * (rpm) cpe:/a:redhat:openshift:4.21::el9
Red Hat	Red Hat OpenShift Container Platform 4.22	Unaffected: 4.22.9.8.202607152026-0 , < * (rpm) cpe:/a:redhat:openshift:4.22::el9
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
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            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:6.12.0-211.20.1.el10_2",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10.2"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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            ],
            "defaultStatus": "affected",
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            "vendor": "Red Hat",
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                "version": "0:6.12.0-55.84.1.el10_0",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:8::nfv"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-553.134.1.rt7.475.el8_10",
                "versionType": "rpm"
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          },
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            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
            "vendor": "Red Hat",
            "versions": [
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                "status": "unaffected",
                "version": "0:4.18.0-305.197.1.el8_4",
                "versionType": "rpm"
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          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-305.197.1.el8_4",
                "versionType": "rpm"
              }
            ]
          },
          {
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            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
            "vendor": "Red Hat",
            "versions": [
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                "status": "unaffected",
                "version": "0:4.18.0-372.198.1.el8_6",
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              }
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          {
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            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-372.198.1.el8_6",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_tus:8.8"
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            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-477.150.1.el8_8",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:8.8"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
            "vendor": "Red Hat",
            "versions": [
              {
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CVE-2026-45898 (GCVE-0-2026-45898)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:17 – Updated: 2026-09-15 12:04

Title

RDMA/iwcm: Fix workqueue list corruption by removing work_list

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix workqueue list corruption by removing work_list The commit e1168f0 ("RDMA/iwcm: Simplify cm_event_handler()") changed the work submission logic to unconditionally call queue_work() with the expectation that queue_work() would have no effect if work was already pending. The problem is that a free list of struct iwcm_work is used (for which struct work_struct is embedded), so each call to queue_work() is basically unique and therefore does indeed queue the work. This causes a problem in the work handler which walks the work_list until it's empty to process entries. This means that a single run of the work handler could process item N+1 and release it back to the free list while the actual workqueue entry is still queued. It could then get reused (INIT_WORK...) and lead to list corruption in the workqueue logic. Fix this by just removing the work_list. The workqueue already does this for us. This fixes the following error that was observed when stress testing with ucmatose on an Intel E830 in iWARP mode: [ 151.465780] list_del corruption. next->prev should be ffff9f0915c69c08, but was ffff9f0a1116be08. (next=ffff9f0a15b11c08) [ 151.466639] ------------[ cut here ]------------ [ 151.466986] kernel BUG at lib/list_debug.c:67! [ 151.467349] Oops: invalid opcode: 0000 [#1] SMP NOPTI [ 151.467753] CPU: 14 UID: 0 PID: 2306 Comm: kworker/u64:18 Not tainted 6.19.0-rc4+ #1 PREEMPT(voluntary) [ 151.468466] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 151.469192] Workqueue: 0x0 (iw_cm_wq) [ 151.469478] RIP: 0010:__list_del_entry_valid_or_report+0xf0/0x100 [ 151.469942] Code: c7 58 5f 4c b2 e8 10 50 aa ff 0f 0b 48 89 ef e8 36 57 cb ff 48 8b 55 08 48 89 e9 48 89 de 48 c7 c7 a8 5f 4c b2 e8 f0 4f aa ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 [ 151.471323] RSP: 0000:ffffb15644e7bd68 EFLAGS: 00010046 [ 151.471712] RAX: 000000000000006d RBX: ffff9f0915c69c08 RCX: 0000000000000027 [ 151.472243] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9f0a37d9c600 [ 151.472768] RBP: ffff9f0a15b11c08 R08: 0000000000000000 R09: c0000000ffff7fff [ 151.473294] R10: 0000000000000001 R11: ffffb15644e7bba8 R12: ffff9f092339ee68 [ 151.473817] R13: ffff9f0900059c28 R14: ffff9f092339ee78 R15: 0000000000000000 [ 151.474344] FS: 0000000000000000(0000) GS:ffff9f0a847b5000(0000) knlGS:0000000000000000 [ 151.474934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 151.475362] CR2: 0000559e233a9088 CR3: 000000020296b004 CR4: 0000000000770ef0 [ 151.475895] PKRU: 55555554 [ 151.476118] Call Trace: [ 151.476331] <TASK> [ 151.476497] move_linked_works+0x49/0xa0 [ 151.476792] __pwq_activate_work.isra.46+0x2f/0xa0 [ 151.477151] pwq_dec_nr_in_flight+0x1e0/0x2f0 [ 151.477479] process_scheduled_works+0x1c8/0x410 [ 151.477823] worker_thread+0x125/0x260 [ 151.478108] ? __pfx_worker_thread+0x10/0x10 [ 151.478430] kthread+0xfe/0x240 [ 151.478671] ? __pfx_kthread+0x10/0x10 [ 151.478955] ? __pfx_kthread+0x10/0x10 [ 151.479240] ret_from_fork+0x208/0x270 [ 151.479523] ? __pfx_kthread+0x10/0x10 [ 151.479806] ret_from_fork_asm+0x1a/0x30 [ 151.480103] </TASK>

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-1341 - Multiple Releases of Same Resource or Handle

Assigner

Linux mitre root

References

11 references

URL	Tags
https://git.kernel.org/stable/c/38c5b49fffa1b7609…
https://git.kernel.org/stable/c/eb715133e0ae12514…
https://git.kernel.org/stable/c/a6b9e793e74e372da…
https://git.kernel.org/stable/c/7874eeacfa4217756…
https://access.redhat.com/security/cve/CVE-2026-45898	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482031	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:27731	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30129	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27708	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT

Impacted products

10 products

Vendor	Product	Version
Linux	Linux	Affected: e1168f09b3314992f1c5251f3793102035da7237 , < 38c5b49fffa1b760959af74f11806eeb3ef4706d (git) Affected: e1168f09b3314992f1c5251f3793102035da7237 , < eb715133e0ae12514bba4d2d5ce1dee774476056 (git) Affected: e1168f09b3314992f1c5251f3793102035da7237 , < a6b9e793e74e372daa266fd0d58b751305877897 (git) Affected: e1168f09b3314992f1c5251f3793102035da7237 , < 7874eeacfa42177565c01d5198726671acf7adf2 (git)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.28.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.82.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.123.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Show details on NVD website

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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/iwcm: Fix workqueue list corruption by removing work_list\n\nThe commit e1168f0 (\"RDMA/iwcm: Simplify cm_event_handler()\")\nchanged the work submission logic to unconditionally call\nqueue_work() with the expectation that queue_work() would\nhave no effect if work was already pending. The problem is\nthat a free list of struct iwcm_work is used (for which\nstruct work_struct is embedded), so each call to queue_work()\nis basically unique and therefore does indeed queue the work.\n\nThis causes a problem in the work handler which walks the work_list\nuntil it\u0027s empty to process entries. This means that a single\nrun of the work handler could process item N+1 and release it\nback to the free list while the actual workqueue entry is still\nqueued. It could then get reused (INIT_WORK...) and lead to\nlist corruption in the workqueue logic.\n\nFix this by just removing the work_list. The workqueue already\ndoes this for us.\n\nThis fixes the following error that was observed when stress\ntesting with ucmatose on an Intel E830 in iWARP mode:\n\n[  151.465780] list_del corruption. next-\u003eprev should be ffff9f0915c69c08, but was ffff9f0a1116be08. (next=ffff9f0a15b11c08)\n[  151.466639] ------------[ cut here ]------------\n[  151.466986] kernel BUG at lib/list_debug.c:67!\n[  151.467349] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[  151.467753] CPU: 14 UID: 0 PID: 2306 Comm: kworker/u64:18 Not tainted 6.19.0-rc4+ #1 PREEMPT(voluntary)\n[  151.468466] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  151.469192] Workqueue:  0x0 (iw_cm_wq)\n[  151.469478] RIP: 0010:__list_del_entry_valid_or_report+0xf0/0x100\n[  151.469942] Code: c7 58 5f 4c b2 e8 10 50 aa ff 0f 0b 48 89 ef e8 36 57 cb ff 48 8b 55 08 48 89 e9 48 89 de 48 c7 c7 a8 5f 4c b2 e8 f0 4f aa ff \u003c0f\u003e 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90\n[  151.471323] RSP: 0000:ffffb15644e7bd68 EFLAGS: 00010046\n[  151.471712] RAX: 000000000000006d RBX: ffff9f0915c69c08 RCX: 0000000000000027\n[  151.472243] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9f0a37d9c600\n[  151.472768] RBP: ffff9f0a15b11c08 R08: 0000000000000000 R09: c0000000ffff7fff\n[  151.473294] R10: 0000000000000001 R11: ffffb15644e7bba8 R12: ffff9f092339ee68\n[  151.473817] R13: ffff9f0900059c28 R14: ffff9f092339ee78 R15: 0000000000000000\n[  151.474344] FS:  0000000000000000(0000) GS:ffff9f0a847b5000(0000) knlGS:0000000000000000\n[  151.474934] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  151.475362] CR2: 0000559e233a9088 CR3: 000000020296b004 CR4: 0000000000770ef0\n[  151.475895] PKRU: 55555554\n[  151.476118] Call Trace:\n[  151.476331]  \u003cTASK\u003e\n[  151.476497]  move_linked_works+0x49/0xa0\n[  151.476792]  __pwq_activate_work.isra.46+0x2f/0xa0\n[  151.477151]  pwq_dec_nr_in_flight+0x1e0/0x2f0\n[  151.477479]  process_scheduled_works+0x1c8/0x410\n[  151.477823]  worker_thread+0x125/0x260\n[  151.478108]  ? __pfx_worker_thread+0x10/0x10\n[  151.478430]  kthread+0xfe/0x240\n[  151.478671]  ? __pfx_kthread+0x10/0x10\n[  151.478955]  ? __pfx_kthread+0x10/0x10\n[  151.479240]  ret_from_fork+0x208/0x270\n[  151.479523]  ? __pfx_kthread+0x10/0x10\n[  151.479806]  ret_from_fork_asm+0x1a/0x30\n[  151.480103]  \u003c/TASK\u003e"
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              "value": "AV:N - The vulnerable cm_event_handler is driven by iWARP connection-management events generated from a remote peer\u0027s iWARP/MPA-over-TCP traffic (connect-request/reply/disconnect), delivered by the provider driver; an iWARP endpoint is reachable over a routed network, not just the local LAN.\nAC:L - The attacker controls both the rate and pattern of connection events, so flooding connection requests at a listening cm_id reliably creates the multiple-events/reused-work-element condition (the bug reproduced readily under ucmatose stress); the attacker drives both sides of the race.\nPR:N - Connection-request events are processed by the iwcm before any application-level authentication, so an unauthenticated remote peer that can speak iWARP/MPA to a listening endpoint needs no privileges on the target.\nUI:N - Triggering requires only that the attacker initiate connection traffic; no action by a local user or victim is needed.\nS:U - The corruption is confined to the kernel\u0027s own workqueue structures within the same security authority; no VM/IOMMU/sandbox boundary is crossed.\nC:H - The bug is a use-after-free-class reuse of an iwcm_work element (whose contents include remote-supplied MPA private_data) causing workqueue list corruption, which per kernel scoring guidance can be leveraged for arbitrary memory disclosure.\nI:H - Reinitializing a still-queued work_struct corrupts the workqueue\u0027s doubly-linked lists, giving a list-unlink write primitive over kernel memory that can be steered toward arbitrary write / control-flow hijack.\nA:H - The corruption produces an immediate kernel BUG/Oops in the iw_cm_wq kworker (panic), and the underlying memory corruption can crash the system repeatedly."
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CVE-2026-46054 (GCVE-0-2026-46054)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:57 – Updated: 2026-09-16 12:04

Title

selinux: fix overlayfs mmap() and mprotect() access checks

Summary

In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap() and mprotect() access checks The existing SELinux security model for overlayfs is to allow access if the current task is able to access the top level file (the "user" file) and the mounter's credentials are sufficient to access the lower level file (the "backing" file). Unfortunately, the current code does not properly enforce these access controls for both mmap() and mprotect() operations on overlayfs filesystems. This patch makes use of the newly created security_mmap_backing_file() LSM hook to provide the missing backing file enforcement for mmap() operations, and leverages the backing file API and new LSM blob to provide the necessary information to properly enforce the mprotect() access controls.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-280 - Improper Handling of Insufficient Permissions or Privileges

Assigner

Linux mitre root

References

20 references

URL	Tags
https://git.kernel.org/stable/c/bc6c380c1159de52a…
https://git.kernel.org/stable/c/8bacd09f12c277102…
https://git.kernel.org/stable/c/d844702198395d3f8…
https://git.kernel.org/stable/c/cd0e707a927a70cdf…
https://git.kernel.org/stable/c/82544d36b1729153c…
https://access.redhat.com/security/cve/CVE-2026-46054	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482025	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:52764	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25191	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67723	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:51746	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:52667	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27811	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59091	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59473	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:52649	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27812	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:67721	vendor-advisoryx_refsource_REDHAT

Impacted products

18 products

Vendor	Product	Version
Linux	Linux	Affected: 2f502839e85ab265f03f25f30d6463154aee5473 , < bc6c380c1159de52a252ed11f19a42c47f60a735 (git) Affected: 2f502839e85ab265f03f25f30d6463154aee5473 , < 8bacd09f12c27710228562e4d13163e58c5f4a45 (git) Affected: 2f502839e85ab265f03f25f30d6463154aee5473 , < d844702198395d3f80222777030f69db6be6b709 (git) Affected: 2f502839e85ab265f03f25f30d6463154aee5473 , < cd0e707a927a70cdfd8bc5a512a9719a87f5ed51 (git) Affected: 2f502839e85ab265f03f25f30d6463154aee5473 , < 82544d36b1729153c8aeb179e84750f0c085d3b1 (git)
Linux	Linux	Affected: 4.19 Unaffected: 0 , < 4.19 (semver) Unaffected: 6.6.144 , ≤ 6.6.* (semver) Unaffected: 6.12.95 , ≤ 6.12.* (semver) Unaffected: 6.18.38 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.22.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.95.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.137.1.rt7.478.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.137.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-305.201.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-305.201.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-372.208.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-372.208.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.158.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.158.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.143.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.132.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:29:22.291Z",
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          "url": "https://git.kernel.org/stable/c/cd0e707a927a70cdfd8bc5a512a9719a87f5ed51"
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        {
          "url": "https://git.kernel.org/stable/c/82544d36b1729153c8aeb179e84750f0c085d3b1"
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      "title": "selinux: fix overlayfs mmap() and mprotect() access checks",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46054",
    "datePublished": "2026-05-27T12:57:12.813Z",
    "dateReserved": "2026-05-13T15:03:33.094Z",
    "dateUpdated": "2026-09-16T12:04:19.732Z",
    "state": "PUBLISHED"
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CVE-2026-46090 (GCVE-0-2026-46090)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:58 – Updated: 2026-09-14 11:58

Title

ALSA: aloop: Fix peer runtime UAF during format-change stop

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix peer runtime UAF during format-change stop loopback_check_format() may stop the capture side when playback starts with parameters that no longer match a running capture stream. Commit 826af7fa62e3 ("ALSA: aloop: Fix racy access at PCM trigger") moved the peer lookup under cable->lock, but the actual snd_pcm_stop() still runs after dropping that lock. A concurrent close can clear the capture entry from cable->streams[] and detach or free its runtime while the playback trigger path still holds a stale peer substream pointer. Keep a per-cable count of in-flight peer stops before dropping cable->lock, and make free_cable() wait for those stops before detaching the runtime. This preserves the existing behavior while making the peer runtime lifetime explicit.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-364 - Signal Handler Race Condition

Assigner

Linux mitre root

References

25 references

URL	Tags
https://git.kernel.org/stable/c/83bd62fa9620ac98d…
https://git.kernel.org/stable/c/345c24b2bcf0923df…
https://git.kernel.org/stable/c/3727a3541788412c3…
https://git.kernel.org/stable/c/d258cdce50ff3e023…
https://git.kernel.org/stable/c/03f52a9c170431e8f…
https://git.kernel.org/stable/c/bdd9503c3d222d273…
https://git.kernel.org/stable/c/5d45e34bf001344e2…
https://git.kernel.org/stable/c/e5c33cdc6f402eab8…
https://access.redhat.com/security/cve/CVE-2026-46090	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2481980	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:35844	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:41236	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33215	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33685	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34095	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34443	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34094	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27353	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:35896	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33899	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:35863	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27354	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33900	vendor-advisoryx_refsource_REDHAT

Impacted products

21 products

Vendor	Product	Version
Linux	Linux	Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < 83bd62fa9620ac98d5d694bde14c50f98c8e7189 (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < 345c24b2bcf0923dfae1ab41497351c68214ff76 (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < 3727a3541788412c393eec236ad228d72efe19c7 (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < d258cdce50ff3e02392917258e81a0ce9555c327 (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < 03f52a9c170431e8f10e156b9dc0dae80b3e9198 (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < bdd9503c3d222d2735b56c7a8b4422ccf3de6e5c (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < 5d45e34bf001344e2966dabca1897561bbc9e913 (git) Affected: 597603d615d2b19a9e451d8cfac24372856a522d , < e5c33cdc6f402eab8abd36ecf436b22c9d3a8aff (git)
Linux	Linux	Affected: 2.6.37 Unaffected: 0 , < 2.6.37 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.27 , ≤ 6.18.* (semver) Unaffected: 7.0.4 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.29.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.84.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:3.10.0-1160.155.1.rt56.1307.el7 , < * (rpm) cpe:/a:redhat:rhel_extras_rt_els:7
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:3.10.0-1160.154.1.el7 , < * (rpm) cpe:/o:redhat:rhel_els:7
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.136.1.rt7.477.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.136.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-305.197.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-305.197.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-372.198.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-372.198.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.150.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.150.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.178.1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.178.1.rt14.463.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::nfv
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.135.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.125.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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CVE-2026-46176 (GCVE-0-2026-46176)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-09-15 12:04

Title

RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init()

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When ib_create_srq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the freed s0 and the ERR_PTR s1 to devr->s0 and devr->s1. This leads to several problems: the lock-free fast path checks "if (devr->s1) return 0;" and treats the ERR_PTR as already initialised; users in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via to_msrq(devr->s0)->msrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences the ERR_PTR and double-frees s0 on teardown. Fix by adding the same `goto unlock` in the s1 failure path.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-825 - Expired Pointer Dereference

Assigner

Linux mitre root

References

12 references

URL	Tags
https://git.kernel.org/stable/c/a13c2ac4d480b7343…
https://git.kernel.org/stable/c/bc2cf5935b4665172…
https://git.kernel.org/stable/c/b087913ae88256df6…
https://git.kernel.org/stable/c/6fd93142dd1d09000…
https://git.kernel.org/stable/c/c488df06bd552bb8b…
https://access.redhat.com/security/cve/CVE-2026-46176	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482594	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:33215	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33685	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34094	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT

Impacted products

10 products

Vendor	Product	Version
Linux	Linux	Affected: b6334d2356fc0922ed01457960f74923058a353a , < a13c2ac4d480b734342c6fbf8249fc48afd675f3 (git) Affected: 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 , < bc2cf5935b4665172235341163315905197ae91d (git) Affected: 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 , < b087913ae88256df66620f7ba0a9776716aeef7e (git) Affected: 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 , < 6fd93142dd1d09000c3750af08270f5792523fe9 (git) Affected: 5895e70f2e6e8dc67b551ca554d6fcde0a7f0467 , < c488df06bd552bb8b6e14fa0cfd5ad986c6e9525 (git) Affected: 6.6.64 , < 6.6.140 (semver)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.29.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.84.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.125.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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CVE-2026-46189 (GCVE-0-2026-46189)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-09-09 12:04

Title

RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.

Severity

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-763 - Release of Invalid Pointer or Reference

Assigner

Linux mitre root

References

22 references

URL	Tags
https://git.kernel.org/stable/c/269967d7693304e1f…
https://git.kernel.org/stable/c/1df5711121cdc11e7…
https://git.kernel.org/stable/c/3a231c34c5bc3d3cf…
https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c…
https://git.kernel.org/stable/c/45d25e3ec17900bf5…
https://git.kernel.org/stable/c/0c63333ff97bd1275…
https://git.kernel.org/stable/c/935ee27d0904aa944…
https://git.kernel.org/stable/c/e38e86995df27f1f8…
https://access.redhat.com/security/cve/CVE-2026-46189	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482588	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:33685	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:36073	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:36767	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:38902	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:30848	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33743	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:47633	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40068	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40760	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:36049	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:35904	vendor-advisoryx_refsource_REDHAT

Impacted products

19 products

Vendor	Product	Version
Linux	Linux	Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 269967d7693304e1f06ed2dff4ebbbeeb397cda4 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 1df5711121cdc11e76b889408fdbe459feba1d39 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 3a231c34c5bc3d3cfc850b877758ec9fdaa8a483 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < ecc36a82ecfcfdf3c6606d209f22ec5543c410e0 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 0c63333ff97bd1275294fd12840a0efe9d7a4c59 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 935ee27d0904aa944cbcc979094c20e5ef62eead (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < e38e86995df27f1f854063dab1f0c6a513db3faf (git)
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.29.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.139.1.rt7.480.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.139.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-305.199.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-305.199.1.el8_4 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:4.18.0-372.201.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	Unaffected: 0:4.18.0-372.201.1.el8_6 , < * (rpm) cpe:/o:redhat:rhel_eus_long_life:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:4.18.0-477.152.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:4.18.0-477.152.1.el8_8 , < * (rpm) cpe:/o:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.19.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.179.1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:5.14.0-284.179.1.rt14.464.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::nfv
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:5.14.0-427.136.1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.127.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

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            "value": "To mitigate this issue, prevent the `vmw_pvrdma` kernel module from loading. Create a file named `/etc/modprobe.d/disable-vmw_pvrdma.conf` with the following content: `install vmw_pvrdma /bin/true`. A system reboot is required for this change to take effect. Disabling this module may impact functionality if VMware paravirtual RDMA devices are actively used."
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CVE-2026-46316 (GCVE-0-2026-46316)

Vulnerability from cvelistv5 – Published: 2026-06-09 11:52 – Updated: 2026-09-16 12:04

Title

KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry vgic_its_invalidate_cache() walks the per-ITS translation cache with xa_for_each() and drops the cache's reference on each entry with vgic_put_irq(). It puts the iterated pointer, though, rather than the value returned by xa_erase(). The function is called from contexts that do not exclude one another: the ITS command handlers hold its_lock, the GITS_CTLR write path holds cmd_lock, and the path that clears EnableLPIs in a redistributor's GICR_CTLR holds neither. Two or more of them can drain the same cache concurrently, and if each one observes the same entry, erases it and then puts it, the single reference the cache holds on that entry is dropped more than once. The entry can then be freed while an ITE still maps it. xa_erase() is atomic and returns the previous entry, so put only the entry that this context actually removed. The cache reference is then dropped exactly once per entry even when the invalidations run concurrently, and the behavior is unchanged when only one context runs.

Severity

9.3 (Critical)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-911 - Improper Update of Reference Count

Assigner

Linux mitre root

References

15 references

URL	Tags
https://git.kernel.org/stable/c/b7b72e88046328c9f…
https://git.kernel.org/stable/c/2bbc395e81bd29c54…
https://git.kernel.org/stable/c/9121f4605ab94969f…
https://git.kernel.org/stable/c/13031fb6b8357fbbc…
https://access.redhat.com/security/cve/CVE-2026-46316	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2486982	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:44231	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40787	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40779	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:40764	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:39371	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34911	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:38902	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:36018	vendor-advisoryx_refsource_REDHAT

Impacted products

16 products

Vendor	Product	Version
Linux	Linux	Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < b7b72e88046328c9fdc638fe887d4240257dd5dc (git) Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < 2bbc395e81bd29c543a0529a678327e932a7ec69 (git) Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < 9121f4605ab94969f62d1b5714ca3c6c69bd202f (git) Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < 13031fb6b8357fbbcded2a7f4cba73e4781ee594 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.30.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:6.12.0-55.88.1.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.14.0-687.22.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:5.14.0-570.127.1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat OpenShift Container Platform 4.19	Unaffected: 4.19.9.6.202607220857-0 , < * (rpm) cpe:/a:redhat:openshift:4.19::el9
Red Hat	Red Hat OpenShift Container Platform 4.20	Unaffected: 4.20.9.6.202607151937-0 , < * (rpm) cpe:/a:redhat:openshift:4.20::el9
Red Hat	Red Hat OpenShift Container Platform 4.21	Unaffected: 4.21.9.6.202607151836-0 , < * (rpm) cpe:/a:redhat:openshift:4.21::el9
Red Hat	Red Hat OpenShift Container Platform 4.22	Unaffected: 4.22.9.8.202607152026-0 , < * (rpm) cpe:/a:redhat:openshift:4.22::el9
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux for NVIDIA 26	cpe:/a:redhat:enterprise_linux_nvidia:
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

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        "timeline": [
          {
            "lang": "en",
            "time": "2026-06-09T00:00:00.000Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-06-09T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/vgic/vgic-its.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b7b72e88046328c9fdc638fe887d4240257dd5dc",
              "status": "affected",
              "version": "8201d1028caa4fae88e222c4e8cf541fdf45b821",
              "versionType": "git"
            },
            {
              "lessThan": "2bbc395e81bd29c543a0529a678327e932a7ec69",
              "status": "affected",
              "version": "8201d1028caa4fae88e222c4e8cf541fdf45b821",
              "versionType": "git"
            },
            {
              "lessThan": "9121f4605ab94969f62d1b5714ca3c6c69bd202f",
              "status": "affected",
              "version": "8201d1028caa4fae88e222c4e8cf541fdf45b821",
              "versionType": "git"
            },
            {
              "lessThan": "13031fb6b8357fbbcded2a7f4cba73e4781ee594",
              "status": "affected",
              "version": "8201d1028caa4fae88e222c4e8cf541fdf45b821",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/vgic/vgic-its.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.93",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.35",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.12",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry\n\nvgic_its_invalidate_cache() walks the per-ITS translation cache with\nxa_for_each() and drops the cache\u0027s reference on each entry with\nvgic_put_irq(). It puts the iterated pointer, though, rather than the\nvalue returned by xa_erase().\n\nThe function is called from contexts that do not exclude one another: the\nITS command handlers hold its_lock, the GITS_CTLR write path holds\ncmd_lock, and the path that clears EnableLPIs in a redistributor\u0027s\nGICR_CTLR holds neither. Two or more of them can drain the same cache\nconcurrently, and if each one observes the same entry, erases it and then\nputs it, the single reference the cache holds on that entry is dropped\nmore than once. The entry can then be freed while an ITE still maps it.\n\nxa_erase() is atomic and returns the previous entry, so put only the entry\nthat this context actually removed. The cache reference is then dropped\nexactly once per entry even when the invalidations run concurrently, and\nthe behavior is unchanged when only one context runs."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is reached only from KVM guest MMIO traps on GICv3 ITS registers (GITS_CTLR/CWRITER command processing) and redistributor GICR_CTLR LPI-disable writes, not from any network-facing host protocol.\nAC:L - A guest controls all racing contexts by pinning vCPUs to run concurrent ITS commands, GITS_CTLR disable, and GICR_CTLR LPI-disable on the same ITS translation cache; the attacker creates and wins the race rather than depending on uncontrollable host timing.\nPR:N - No host privileges are required beyond running code in an assigned KVM guest (e.g. a cloud VM tenant on arm64); exploitation needs guest-kernel access to GIC MMIO, not host root or capabilities in the init namespace.\nUI:N - Exploitation is fully attacker-driven from within the guest VM and does not require any victim user or administrator action on the host.\nS:C - The use-after-free corrupts host-kernel heap memory (`struct vgic_irq`) from guest-controlled VGIC operations, crossing the guest-to-host virtualization security boundary with VM-escape impact.\nC:H - Premature `vgic_put_irq()` frees the LPI `vgic_irq` while an ITE still maps it, yielding a kernel heap use-after-free that can be leveraged for arbitrary host memory disclosure via subsequent IRQ structure dereferences.\nI:H - The dangling `vgic_irq` pointer allows attacker-influenced writes through IRQ state fields (`irq_lock`, `pending_latch`, `target_vcpu`, list heads), enabling heap grooming and potential host control-flow or data corruption.\nA:H - The refcount underflow frees live kernel objects still in use by the ITS, causing host kernel oops/panic or hang during subsequent LPI delivery, MSI injection, or ITS command handling."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:31:11.943Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b7b72e88046328c9fdc638fe887d4240257dd5dc"
        },
        {
          "url": "https://git.kernel.org/stable/c/2bbc395e81bd29c543a0529a678327e932a7ec69"
        },
        {
          "url": "https://git.kernel.org/stable/c/9121f4605ab94969f62d1b5714ca3c6c69bd202f"
        },
        {
          "url": "https://git.kernel.org/stable/c/13031fb6b8357fbbcded2a7f4cba73e4781ee594"
        }
      ],
      "title": "KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46316",
    "datePublished": "2026-06-09T11:52:29.349Z",
    "dateReserved": "2026-05-13T15:03:33.112Z",
    "dateUpdated": "2026-09-16T12:04:19.805Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Tags

Sightings

Nomenclature

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