Vulnerability-Lookup

ALSA-2026:61887 (CVE-2024-53685)

Vulnerability from osv_almalinux – Published: 2026-09-01 00:00 – Updated: 2026-09-04 20:49 – 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: seccomp: passthrough uretprobe systemcall without filtering (CVE-2025-21834)
kernel: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() (CVE-2026-23003)
kernel: netfilter: nf_tables: Fix for duplicate device in netdev hooks (CVE-2026-43454)
kernel: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() (CVE-2026-43450)
kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970)
kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() (CVE-2026-46120)
kernel: iommu/amd: Fix clone_alias() to use the original device's devid (CVE-2026-53053)
kernel: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg (CVE-2026-53026)
kernel: zram: fix use-after-free in zram_bvec_write_partial() (CVE-2026-53185)
kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196)
kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189)
kernel: mm/list_lru: drain before clearing xarray entry on reparent (CVE-2026-53153)
kernel: pNFS: Fix use-after-free in pnfs_update_layout() (CVE-2026-63800)
kernel: nfsd: fix posix_acl leak on SETACL decode failure (CVE-2026-53397)
kernel: nfsd: release layout stid on setlease failure (CVE-2026-53399)
kernel: NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392)
kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (CVE-2026-53391)
kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018)
kernel: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() (CVE-2026-64136)
kernel: netfilter: ipset: fix race between dump and ip_set_list resize (CVE-2026-64189)
kernel: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CVE-2026-64320)
kernel: crypto: qat - fix VF2PF work teardown race in adf_disable_sriov() (CVE-2026-64438)
kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304)
kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298)
kernel: ALSA: virtio: Validate control metadata from the device (CVE-2026-64490)
kernel: mm: shrinker: fix shrinker_info teardown race with expansion (CVE-2026-64418)
kernel: smb: client: fix change notify replay double-free (CVE-2026-64384)
kernel: Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count (CVE-2026-64277)
kernel: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count (CVE-2026-64276)
kernel: AMD-SN-7061: Safe RET Interrupt Vulnerability (CVE-2026-68480)
kernel: mm/khugepaged: write all dirty file folios when collapsing (CVE-2026-68086)
kernel: Linux kernel: Arbitrary code execution via userfaultfd shadow stack manipulation (CVE-2026-68166)
kernel: locking/rt: Fix the incorrect RCU protection in rt_spin_unlock() (CVE-2026-72069)
kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CVE-2026-72130)
kernel: ceph: give up on paths longer than PATH_MAX (CVE-2024-53685)
kernel: ceph: fix memory leaks in ceph_mdsc_build_path() (CVE-2026-43419)
kernel: ceph: add a bunch of missing ceph_path_info initializers (CVE-2026-43408)

Bug Fix(es) and Enhancement(s):

AlmaLinux 10: s390: Revert support for DCACHE_WORD_ACCESS [almalinux-10.2.z] (JIRA:AlmaLinux-188180)
qede: build_skb failure causes off-by-one BD ring corruption and kernel panic [almalinux-10.2.z] (JIRA:AlmaLinux-193043)
ss core dumped when there is an SCTP session [almalinux-10.2.z] (JIRA:AlmaLinux-212393)
[AlmaLinux-10.2.z] Intel CWF: CPU is unable to obtain cstate1 on idle system (JIRA:AlmaLinux-218627)
AlmaLinux10.0 - s390/pfault: Fix virtual vs physical address confusion [almalinux-10.2.z] (JIRA:AlmaLinux-222507)

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-2026:61887	ADVISORY
	https://access.redhat.com/security/cve/CVE-2025-21834	REPORT
	https://access.redhat.com/security/cve/CVE-2026-23003	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43450	REPORT
	https://access.redhat.com/security/cve/CVE-2026-43454	REPORT
	https://access.redhat.com/security/cve/CVE-2026-45970	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46120	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53026	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53053	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53153	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53185	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53189	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53196	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53391	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53392	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53397	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53399	REPORT
	https://access.redhat.com/security/cve/CVE-2026-63800	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64018	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64136	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64189	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64276	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64277	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64298	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64304	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64320	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64384	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64418	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64438	REPORT
	https://access.redhat.com/security/cve/CVE-2026-64490	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68086	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68166	REPORT
	https://access.redhat.com/security/cve/CVE-2026-68480	REPORT
	https://access.redhat.com/security/cve/CVE-2026-72069	REPORT
	https://access.redhat.com/security/cve/CVE-2026-72130	REPORT
	https://bugzilla.redhat.com/2350398	REPORT
	https://bugzilla.redhat.com/2432681	REPORT
	https://bugzilla.redhat.com/2468145	REPORT
	https://bugzilla.redhat.com/2468228	REPORT
	https://bugzilla.redhat.com/2482006	REPORT
	https://bugzilla.redhat.com/2482614	REPORT
	https://bugzilla.redhat.com/2492310	REPORT
	https://bugzilla.redhat.com/2492454	REPORT
	https://bugzilla.redhat.com/2492735	REPORT
	https://bugzilla.redhat.com/2492750	REPORT
	https://bugzilla.redhat.com/2492788	REPORT
	https://bugzilla.redhat.com/2492790	REPORT
	https://bugzilla.redhat.com/2502219	REPORT
	https://bugzilla.redhat.com/2502227	REPORT
	https://bugzilla.redhat.com/2502239	REPORT
	https://bugzilla.redhat.com/2502240	REPORT
	https://bugzilla.redhat.com/2502260	REPORT
	https://bugzilla.redhat.com/2502421	REPORT
	https://bugzilla.redhat.com/2502527	REPORT
	https://bugzilla.redhat.com/2502889	REPORT
	https://bugzilla.redhat.com/2507061	REPORT
	https://bugzilla.redhat.com/2507118	REPORT
	https://bugzilla.redhat.com/2507119	REPORT
	https://bugzilla.redhat.com/2507208	REPORT
	https://bugzilla.redhat.com/2507277	REPORT
	https://bugzilla.redhat.com/2507285	REPORT
	https://bugzilla.redhat.com/2507287	REPORT
	https://bugzilla.redhat.com/2507290	REPORT
	https://bugzilla.redhat.com/2507301	REPORT
	https://bugzilla.redhat.com/2508363	REPORT
	https://bugzilla.redhat.com/2513141	REPORT
	https://bugzilla.redhat.com/2513167	REPORT
	https://bugzilla.redhat.com/2516248	REPORT
	https://bugzilla.redhat.com/2516448	REPORT
	https://errata.almalinux.org/10/ALSA-2026-61887.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: seccomp: passthrough uretprobe systemcall without filtering (CVE-2025-21834)\n  * kernel: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() (CVE-2026-23003)\n  * kernel: netfilter: nf_tables: Fix for duplicate device in netdev hooks (CVE-2026-43454)\n  * kernel: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() (CVE-2026-43450)\n  * kernel: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (CVE-2026-45970)\n  * kernel: ip6_gre: Use cached t-\u003enet in ip6erspan_changelink() (CVE-2026-46120)\n  * kernel: iommu/amd: Fix clone_alias() to use the original device\u0027s devid (CVE-2026-53053)\n  * kernel: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg (CVE-2026-53026)\n  * kernel: zram: fix use-after-free in zram_bvec_write_partial() (CVE-2026-53185)\n  * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196)\n  * kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189)\n  * kernel: mm/list_lru: drain before clearing xarray entry on reparent (CVE-2026-53153)\n  * kernel: pNFS: Fix use-after-free in pnfs_update_layout() (CVE-2026-63800)\n  * kernel: nfsd: fix posix_acl leak on SETACL decode failure (CVE-2026-53397)\n  * kernel: nfsd: release layout stid on setlease failure (CVE-2026-53399)\n  * kernel: NFSv4/flexfiles: reject zero filehandle version count (CVE-2026-53392)\n  * kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr (CVE-2026-53391)\n  * kernel: net: mana: validate rx_req_idx to prevent out-of-bounds array access (CVE-2026-64018)\n  * kernel: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() (CVE-2026-64136)\n  * kernel: netfilter: ipset: fix race between dump and ip_set_list resize (CVE-2026-64189)\n  * kernel: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CVE-2026-64320)\n  * kernel: crypto: qat - fix VF2PF work teardown race in adf_disable_sriov() (CVE-2026-64438)\n  * kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304)\n  * kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (CVE-2026-64298)\n  * kernel: ALSA: virtio: Validate control metadata from the device (CVE-2026-64490)\n  * kernel: mm: shrinker: fix shrinker_info teardown race with expansion (CVE-2026-64418)\n  * kernel: smb: client: fix change notify replay double-free (CVE-2026-64384)\n  * kernel: Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count (CVE-2026-64277)\n  * kernel: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count (CVE-2026-64276)\n  * kernel: AMD-SN-7061: Safe RET Interrupt Vulnerability (CVE-2026-68480)\n  * kernel: mm/khugepaged: write all dirty file folios when collapsing (CVE-2026-68086)\n  * kernel: Linux kernel: Arbitrary code execution via userfaultfd shadow stack manipulation (CVE-2026-68166)\n  * kernel: locking/rt: Fix the incorrect RCU protection in rt_spin_unlock() (CVE-2026-72069)\n  * kernel: nvmet-auth: reject short AUTH_RECEIVE buffers (CVE-2026-72130)\n  * kernel: ceph: give up on paths longer than PATH_MAX (CVE-2024-53685)\n  * kernel: ceph: fix memory leaks in ceph_mdsc_build_path() (CVE-2026-43419)\n  * kernel: ceph: add a bunch of missing ceph_path_info initializers (CVE-2026-43408)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * AlmaLinux 10: s390: Revert support for DCACHE_WORD_ACCESS [almalinux-10.2.z] (JIRA:AlmaLinux-188180)\n  * qede: build_skb failure causes off-by-one BD ring corruption and kernel panic [almalinux-10.2.z] (JIRA:AlmaLinux-193043)\n  * ss core dumped when there is an SCTP session [almalinux-10.2.z] (JIRA:AlmaLinux-212393)\n  * [AlmaLinux-10.2.z] Intel CWF: CPU is unable to obtain cstate1 on idle system (JIRA:AlmaLinux-218627)\n  * AlmaLinux10.0 - s390/pfault: Fix virtual vs physical address confusion [almalinux-10.2.z] (JIRA:AlmaLinux-222507)\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-2026:61887",
  "modified": "2026-09-04T20:49:06Z",
  "published": "2026-09-01T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:61887"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-21834"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-23003"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43450"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-43454"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-45970"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46120"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53026"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53053"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53153"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53185"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53189"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53196"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53391"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53392"
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    {
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      "url": "https://access.redhat.com/security/cve/CVE-2026-53397"
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    {
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      "url": "https://access.redhat.com/security/cve/CVE-2026-53399"
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    {
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      "url": "https://access.redhat.com/security/cve/CVE-2026-63800"
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    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-61887.html"
    }
  ],
  "related": [
    "CVE-2024-53685",
    "CVE-2025-21834",
    "CVE-2026-23003",
    "CVE-2026-43408",
    "CVE-2026-43419",
    "CVE-2026-43450",
    "CVE-2026-43454",
    "CVE-2026-45970",
    "CVE-2026-46120",
    "CVE-2026-53026",
    "CVE-2026-53053",
    "CVE-2026-53153",
    "CVE-2026-53185",
    "CVE-2026-53189",
    "CVE-2026-53196",
    "CVE-2026-53391",
    "CVE-2026-53392",
    "CVE-2026-53397",
    "CVE-2026-53399",
    "CVE-2026-63800",
    "CVE-2026-64018",
    "CVE-2026-64136",
    "CVE-2026-64189",
    "CVE-2026-64276",
    "CVE-2026-64277",
    "CVE-2026-64298",
    "CVE-2026-64304",
    "CVE-2026-64320",
    "CVE-2026-64384",
    "CVE-2026-64418",
    "CVE-2026-64438",
    "CVE-2026-64490",
    "CVE-2026-68086",
    "CVE-2026-68166",
    "CVE-2026-68480",
    "CVE-2026-72069",
    "CVE-2026-72130"
  ],
  "schema_version": "1.7.0",
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2024-53685",
    "CVE-2025-21834",
    "CVE-2026-23003",
    "CVE-2026-43408",
    "CVE-2026-43419",
    "CVE-2026-43450",
    "CVE-2026-43454",
    "CVE-2026-45970",
    "CVE-2026-46120",
    "CVE-2026-53026",
    "CVE-2026-53053",
    "CVE-2026-53153",
    "CVE-2026-53185",
    "CVE-2026-53189",
    "CVE-2026-53196",
    "CVE-2026-53391",
    "CVE-2026-53392",
    "CVE-2026-53397",
    "CVE-2026-53399",
    "CVE-2026-63800",
    "CVE-2026-64018",
    "CVE-2026-64136",
    "CVE-2026-64189",
    "CVE-2026-64276",
    "CVE-2026-64277",
    "CVE-2026-64298",
    "CVE-2026-64304",
    "CVE-2026-64320",
    "CVE-2026-64384",
    "CVE-2026-64418",
    "CVE-2026-64438",
    "CVE-2026-64490",
    "CVE-2026-68086",
    "CVE-2026-68166",
    "CVE-2026-68480",
    "CVE-2026-72069",
    "CVE-2026-72130"
  ]
}

CVE-2024-53685 (GCVE-0-2024-53685)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:35 – Updated: 2026-11-05 20:31

Title

ceph: give up on paths longer than PATH_MAX

Summary

In the Linux kernel, the following vulnerability has been resolved: ceph: give up on paths longer than PATH_MAX If the full path to be built by ceph_mdsc_build_path() happens to be longer than PATH_MAX, then this function will enter an endless (retry) loop, effectively blocking the whole task. Most of the machine becomes unusable, making this a very simple and effective DoS vulnerability. I cannot imagine why this retry was ever implemented, but it seems rather useless and harmful to me. Let's remove it and fail with ENAMETOOLONG instead.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-05 20:28 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/0f2b2d9e881c90402…
https://git.kernel.org/stable/c/d42ad3f161a5a487f…
https://git.kernel.org/stable/c/e4b168c64da06954b…
https://git.kernel.org/stable/c/c47ed91156daf3286…
https://git.kernel.org/stable/c/99a37ab76a315c830…
https://git.kernel.org/stable/c/550f7ca98ee028a60…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9030aaf9bf0a1eee47a154c316c789e959638b0f , < 0f2b2d9e881c90402dbe28f9ba831775b7992e1f (git) Affected: 9030aaf9bf0a1eee47a154c316c789e959638b0f , < d42ad3f161a5a487f81915c406f46943c7187a0a (git) Affected: 9030aaf9bf0a1eee47a154c316c789e959638b0f , < e4b168c64da06954be5d520f6c16469b1cadc069 (git) Affected: 9030aaf9bf0a1eee47a154c316c789e959638b0f , < c47ed91156daf328601d02b58d52d9804da54108 (git) Affected: 9030aaf9bf0a1eee47a154c316c789e959638b0f , < 99a37ab76a315c8307eb5b0dc095d8ad9d8efeaa (git) Affected: 9030aaf9bf0a1eee47a154c316c789e959638b0f , < 550f7ca98ee028a606aa75705a7e77b1bd11720f (git)
Linux	Linux	Affected: 2.6.34 Unaffected: 0 , < 2.6.34 (semver) Unaffected: 5.10.234 , ≤ 5.10.* (semver) Unaffected: 5.15.177 , ≤ 5.15.* (semver) Unaffected: 6.1.125 , ≤ 6.1.* (semver) Unaffected: 6.6.70 , ≤ 6.6.* (semver) Unaffected: 6.12.7 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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              "version": "0",
              "versionType": "semver"
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              "versionType": "semver"
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              "versionType": "semver"
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              "versionType": "semver"
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              "versionType": "semver"
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "ceph: give up on paths longer than PATH_MAX",
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    "datePublished": "2025-01-11T12:35:40.252Z",
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}

CVE-2025-21834 (GCVE-0-2025-21834)

Vulnerability from cvelistv5 – Published: 2025-03-06 16:22 – Updated: 2026-05-11 21:07

Title

seccomp: passthrough uretprobe systemcall without filtering

Summary

In the Linux kernel, the following vulnerability has been resolved: seccomp: passthrough uretprobe systemcall without filtering When attaching uretprobes to processes running inside docker, the attached process is segfaulted when encountering the retprobe. The reason is that now that uretprobe is a system call the default seccomp filters in docker block it as they only allow a specific set of known syscalls. This is true for other userspace applications which use seccomp to control their syscall surface. Since uretprobe is a "kernel implementation detail" system call which is not used by userspace application code directly, it is impractical and there's very little point in forcing all userspace applications to explicitly allow it in order to avoid crashing tracked processes. Pass this systemcall through seccomp without depending on configuration. Note: uretprobe is currently only x86_64 and isn't expected to ever be supported in i386. [kees: minimized changes for easier backporting, tweaked commit log]

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/5a262628f4cf2437d…
https://git.kernel.org/stable/c/fa80018aa5be10c35…
https://git.kernel.org/stable/c/cf6cb56ef24410fb5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ff474a78cef5cb5f32be52fe25b78441327a2e7c , < 5a262628f4cf2437d863fe41f9d427177b87664c (git) Affected: ff474a78cef5cb5f32be52fe25b78441327a2e7c , < fa80018aa5be10c35e9fa896b7b4061a8dce3eed (git) Affected: ff474a78cef5cb5f32be52fe25b78441327a2e7c , < cf6cb56ef24410fb5308f9655087f1eddf4452e6 (git)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.14 , ≤ 6.12.* (semver) Unaffected: 6.13.3 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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CVE-2026-23003 (GCVE-0-2026-23003)

Vulnerability from cvelistv5 – Published: 2026-01-25 14:36 – Updated: 2026-11-10 12:41

Title

ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()

Summary

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() Blamed commit did not take care of VLAN encapsulations as spotted by syzbot [1]. Use skb_vlan_inet_prepare() instead of pskb_inet_may_pull(). [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729 __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860 ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903 gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1 ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438 ip6_input_finish+0x1f4/0x4a0 net/ipv6/ip6_input.c:489 NF_HOOK include/linux/netfilter.h:318 [inline] ip6_input+0x9c/0x330 net/ipv6/ip6_input.c:500 ip6_mc_input+0x7ca/0xc10 net/ipv6/ip6_input.c:590 dst_input include/net/dst.h:474 [inline] ip6_rcv_finish+0x958/0x990 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:318 [inline] ipv6_rcv+0xf1/0x3c0 net/ipv6/ip6_input.c:311 __netif_receive_skb_one_core net/core/dev.c:6139 [inline] __netif_receive_skb+0x1df/0xac0 net/core/dev.c:6252 netif_receive_skb_internal net/core/dev.c:6338 [inline] netif_receive_skb+0x57/0x630 net/core/dev.c:6397 tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485 tun_get_user+0x5c0e/0x6c60 drivers/net/tun.c:1953 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0xbe2/0x15d0 fs/read_write.c:686 ksys_write fs/read_write.c:738 [inline] __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746 x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: slab_post_alloc_hook mm/slub.c:4960 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x9e7/0x17a0 mm/slub.c:5315 kmalloc_reserve+0x13c/0x4b0 net/core/skbuff.c:586 __alloc_skb+0x805/0x1040 net/core/skbuff.c:690 alloc_skb include/linux/skbuff.h:1383 [inline] alloc_skb_with_frags+0xc5/0xa60 net/core/skbuff.c:6712 sock_alloc_send_pskb+0xacc/0xc60 net/core/sock.c:2995 tun_alloc_skb drivers/net/tun.c:1461 [inline] tun_get_user+0x1142/0x6c60 drivers/net/tun.c:1794 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999 new_sync_write fs/read_write.c:593 [inline] vfs_write+0xbe2/0x15d0 fs/read_write.c:686 ksys_write fs/read_write.c:738 [inline] __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746 x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 UID: 0 PID: 6465 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-16 20:17 UTC

CWE

CWE-457 - Use of Uninitialized Variable

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

9 references

URL	Tags
https://git.kernel.org/stable/c/f9c5c5b791d385057…
https://git.kernel.org/stable/c/64c71d60a21a9ed0a…
https://git.kernel.org/stable/c/9e1c8c2a33d0a7b1f…
https://git.kernel.org/stable/c/2f03dafea0a8096a2…
https://git.kernel.org/stable/c/df5ffde9669314500…
https://git.kernel.org/stable/c/b9f915340f25cae15…
https://git.kernel.org/stable/c/81c734dae203757fb…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

12 products

Vendor	Product	Version
Linux	Linux	Affected: a9bc32879a08f23cdb80a48c738017e39aea1080 , < f9c5c5b791d3850570796f9e067629474e613796 (git) Affected: af6b5c50d47ab43e5272ad61935d0ed2e264d3f0 , < 64c71d60a21a9ed0a802483dcd422b5b24eb1abe (git) Affected: d54e4da98bbfa8c257bdca94c49652d81d18a4d8 , < 9e1c8c2a33d0a7b1f637b5d0602fe56ed10166af (git) Affected: 350a6640fac4b53564ec20aa3f4a0922cb0ba5e6 , < 2f03dafea0a8096a2eb60f551218b360e5bab9a3 (git) Affected: 8d975c15c0cd744000ca386247432d57b21f9df0 , < df5ffde9669314500809bc498ae73d6d3d9519ac (git) Affected: 8d975c15c0cd744000ca386247432d57b21f9df0 , < b9f915340f25cae1562f18e1eb52deafca328414 (git) Affected: 8d975c15c0cd744000ca386247432d57b21f9df0 , < 81c734dae203757fb3c9eee6f9896386940776bd (git) Affected: c835df3bcc14858ae9b27315dd7de76370b94f3a (git) Affected: 5.10.210 , < 5.10.249 (semver) Affected: 5.15.149 , < 5.15.199 (semver) Affected: 6.1.77 , < 6.1.162 (semver) Affected: 6.6.16 , < 6.6.122 (semver) Affected: 6.7.4 , < 6.8 (semver)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 5.10.249 , ≤ 5.10.* (semver) Unaffected: 5.15.199 , ≤ 5.15.* (semver) Unaffected: 6.1.162 , ≤ 6.1.* (semver) Unaffected: 6.6.122 , ≤ 6.6.* (semver) Unaffected: 6.12.67 , ≤ 6.12.* (semver) Unaffected: 6.18.7 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)	Affected: V3.1.7 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)	Affected: V3.1.7 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)	Affected: V3.1.7 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)	Affected: V3.1.7 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)	Affected: V3.1.7 , < * (custom)

Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()\n\nBlamed commit did not take care of VLAN encapsulations\nas spotted by syzbot [1].\n\nUse skb_vlan_inet_prepare() instead of pskb_inet_may_pull().\n\n[1]\n BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321\n  __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n  INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n  IP6_ECN_decapsulate+0x7a8/0x1fa0 include/net/inet_ecn.h:321\n  ip6ip6_dscp_ecn_decapsulate+0x16f/0x1b0 net/ipv6/ip6_tunnel.c:729\n  __ip6_tnl_rcv+0xed9/0x1b50 net/ipv6/ip6_tunnel.c:860\n  ip6_tnl_rcv+0xc3/0x100 net/ipv6/ip6_tunnel.c:903\n gre_rcv+0x1529/0x1b90 net/ipv6/ip6_gre.c:-1\n  ip6_protocol_deliver_rcu+0x1c89/0x2c60 net/ipv6/ip6_input.c:438\n  ip6_input_finish+0x1f4/0x4a0 net/ipv6/ip6_input.c:489\n  NF_HOOK include/linux/netfilter.h:318 [inline]\n  ip6_input+0x9c/0x330 net/ipv6/ip6_input.c:500\n  ip6_mc_input+0x7ca/0xc10 net/ipv6/ip6_input.c:590\n  dst_input include/net/dst.h:474 [inline]\n  ip6_rcv_finish+0x958/0x990 net/ipv6/ip6_input.c:79\n  NF_HOOK include/linux/netfilter.h:318 [inline]\n  ipv6_rcv+0xf1/0x3c0 net/ipv6/ip6_input.c:311\n  __netif_receive_skb_one_core net/core/dev.c:6139 [inline]\n  __netif_receive_skb+0x1df/0xac0 net/core/dev.c:6252\n  netif_receive_skb_internal net/core/dev.c:6338 [inline]\n  netif_receive_skb+0x57/0x630 net/core/dev.c:6397\n  tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\n  tun_get_user+0x5c0e/0x6c60 drivers/net/tun.c:1953\n  tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999\n  new_sync_write fs/read_write.c:593 [inline]\n  vfs_write+0xbe2/0x15d0 fs/read_write.c:686\n  ksys_write fs/read_write.c:738 [inline]\n  __do_sys_write fs/read_write.c:749 [inline]\n  __se_sys_write fs/read_write.c:746 [inline]\n  __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746\n  x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was created at:\n  slab_post_alloc_hook mm/slub.c:4960 [inline]\n  slab_alloc_node mm/slub.c:5263 [inline]\n  kmem_cache_alloc_node_noprof+0x9e7/0x17a0 mm/slub.c:5315\n  kmalloc_reserve+0x13c/0x4b0 net/core/skbuff.c:586\n  __alloc_skb+0x805/0x1040 net/core/skbuff.c:690\n  alloc_skb include/linux/skbuff.h:1383 [inline]\n  alloc_skb_with_frags+0xc5/0xa60 net/core/skbuff.c:6712\n  sock_alloc_send_pskb+0xacc/0xc60 net/core/sock.c:2995\n  tun_alloc_skb drivers/net/tun.c:1461 [inline]\n  tun_get_user+0x1142/0x6c60 drivers/net/tun.c:1794\n  tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1999\n  new_sync_write fs/read_write.c:593 [inline]\n  vfs_write+0xbe2/0x15d0 fs/read_write.c:686\n  ksys_write fs/read_write.c:738 [inline]\n  __do_sys_write fs/read_write.c:749 [inline]\n  __se_sys_write fs/read_write.c:746 [inline]\n  __x64_sys_write+0x1fb/0x4d0 fs/read_write.c:746\n  x64_sys_call+0x30ab/0x3e70 arch/x86/include/generated/asm/syscalls_64.h:2\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xd3/0xf80 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nCPU: 0 UID: 0 PID: 6465 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025"
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      "title": "ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()",
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CVE-2026-43408 (GCVE-0-2026-43408)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-10-21 12:40

Title

ceph: add a bunch of missing ceph_path_info initializers

Summary

In the Linux kernel, the following vulnerability has been resolved: ceph: add a bunch of missing ceph_path_info initializers ceph_mdsc_build_path() must be called with a zero-initialized ceph_path_info parameter, or else the following ceph_mdsc_free_path_info() may crash. Example crash (on Linux 6.18.12): virt_to_cache: Object is not a Slab page! WARNING: CPU: 184 PID: 2871736 at mm/slub.c:6732 kmem_cache_free+0x316/0x400 [...] Call Trace: [...] ceph_open+0x13d/0x3e0 do_dentry_open+0x134/0x480 vfs_open+0x2a/0xe0 path_openat+0x9a3/0x1160 [...] cache_from_obj: Wrong slab cache. names_cache but object is from ceph_inode_info WARNING: CPU: 184 PID: 2871736 at mm/slub.c:6746 kmem_cache_free+0x2dd/0x400 [...] kernel BUG at mm/slub.c:634! Oops: invalid opcode: 0000 [#1] SMP NOPTI RIP: 0010:__slab_free+0x1a4/0x350 Some of the ceph_mdsc_build_path() callers had initializers, but others had not, even though they were all added by commit 15f519e9f883 ("ceph: fix race condition validating r_parent before applying state"). The ones without initializer are suspectible to random crashes. (I can imagine it could even be possible to exploit this bug to elevate privileges.) Unfortunately, these Ceph functions are undocumented and its semantics can only be derived from the code. I see that ceph_mdsc_build_path() initializes the structure only on success, but not on error. Calling ceph_mdsc_free_path_info() after a failed ceph_mdsc_build_path() call does not even make sense, but that's what all callers do, and for it to be safe, the structure must be zero-initialized. The least intrusive approach to fix this is therefore to add initializers everywhere.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:17 UTC

CWE

CWE-457 - Use of Uninitialized Variable

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/644b47f0574fd82ae…
https://git.kernel.org/stable/c/8be8911f590813e6f…
https://git.kernel.org/stable/c/453df1f4535842bf1…
https://git.kernel.org/stable/c/43323a5934b660afa…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: db378e6f83ec705c6091c65d482d555edc2b0a72 , < 644b47f0574fd82aeb9d00317eca8d1f2a525c8c (git) Affected: 15f519e9f883b316d86e2bb6b767a023aafd9d83 , < 8be8911f590813e6f90bc6407ced1b23e50bc5da (git) Affected: 15f519e9f883b316d86e2bb6b767a023aafd9d83 , < 453df1f4535842bf17ff1885a225e153d7ee3374 (git) Affected: 15f519e9f883b316d86e2bb6b767a023aafd9d83 , < 43323a5934b660afae687e8e4e95ac328615a5c4 (git) Affected: dc5aad078abc416dd3d555c50f5308c16ba918a7 (git) Affected: 2bfe45987eb346e299d9f763f9cd05f77011519f (git) Affected: 6.12.48 , < 6.12.78 (semver) Affected: 6.6.160 , < 6.7 (semver) Affected: 6.16.8 , < 6.17 (semver)
Linux	Linux	Affected: 6.17 Unaffected: 0 , < 6.17 (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: add a bunch of missing ceph_path_info initializers\n\nceph_mdsc_build_path() must be called with a zero-initialized\nceph_path_info parameter, or else the following\nceph_mdsc_free_path_info() may crash.\n\nExample crash (on Linux 6.18.12):\n\n  virt_to_cache: Object is not a Slab page!\n  WARNING: CPU: 184 PID: 2871736 at mm/slub.c:6732 kmem_cache_free+0x316/0x400\n  [...]\n  Call Trace:\n   [...]\n   ceph_open+0x13d/0x3e0\n   do_dentry_open+0x134/0x480\n   vfs_open+0x2a/0xe0\n   path_openat+0x9a3/0x1160\n  [...]\n  cache_from_obj: Wrong slab cache. names_cache but object is from ceph_inode_info\n  WARNING: CPU: 184 PID: 2871736 at mm/slub.c:6746 kmem_cache_free+0x2dd/0x400\n  [...]\n  kernel BUG at mm/slub.c:634!\n  Oops: invalid opcode: 0000 [#1] SMP NOPTI\n  RIP: 0010:__slab_free+0x1a4/0x350\n\nSome of the ceph_mdsc_build_path() callers had initializers, but\nothers had not, even though they were all added by commit 15f519e9f883\n(\"ceph: fix race condition validating r_parent before applying state\").\nThe ones without initializer are suspectible to random crashes.  (I can\nimagine it could even be possible to exploit this bug to elevate\nprivileges.)\n\nUnfortunately, these Ceph functions are undocumented and its semantics\ncan only be derived from the code.  I see that ceph_mdsc_build_path()\ninitializes the structure only on success, but not on error.\n\nCalling ceph_mdsc_free_path_info() after a failed\nceph_mdsc_build_path() call does not even make sense, but that\u0027s what\nall callers do, and for it to be safe, the structure must be\nzero-initialized.  The least intrusive approach to fix this is\ntherefore to add initializers everywhere."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Reachable through local VFS operations on an already-mounted Ceph filesystem, such as open/create, unlink/rmdir, and setattr/truncate/chmod paths. It is not directly reachable from unauthenticated network packets.\nAC:L - An unprivileged user can create or access Ceph paths that make ceph_mdsc_build_path() fail, such as over-PATH_MAX dentry paths, and the faulty free path runs immediately afterward. No race or external timing condition is required.\nPR:L - The attacker needs only ordinary local user access to a Ceph mount with filesystem permissions to operate on relevant files or directories. No real root or kernel capability is required once the filesystem is mounted.\nUI:N - The attacker triggers the vulnerable path directly with their own filesystem syscalls. No separate victim action is required.\nS:U - The corruption occurs inside the local kernel Ceph client and impacts the same kernel security authority. It does not cross a VM, IOMMU, or other separate security scope boundary.\nC:H - The missing initializer can make ceph_mdsc_free_path_info() kfree a stale or attacker-influenced kernel heap pointer, creating heap corruption. Under the required high-severity tie break, this is treated as capable of yielding kernel memory disclosure primitives.\nI:H - The invalid or double free of a path buffer is kernel heap memory corruption and can plausibly be shaped into write/control-flow corruption. Under the required high-severity tie break, integrity impact is High.\nA:H - The fix commit includes real crashes with invalid slab frees and a kernel BUG/Oops in the Ceph open path. A local attacker can repeatedly trigger a kernel crash, causing high availability impact."
            }
          ]
        }
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        "dateUpdated": "2026-10-21T12:40:44.899Z",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43408",
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CVE-2026-43419 (GCVE-0-2026-43419)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-11-06 15:42

Title

ceph: fix memory leaks in ceph_mdsc_build_path()

Summary

In the Linux kernel, the following vulnerability has been resolved: ceph: fix memory leaks in ceph_mdsc_build_path() Add __putname() calls to error code paths that did not free the "path" pointer obtained by __getname(). If ownership of this pointer is not passed to the caller via path_info.path, the function must free it before returning.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-06 15:37 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

6 references

URL	Tags
https://git.kernel.org/stable/c/d39366c169f873edc…
https://git.kernel.org/stable/c/657dc653b06a3cc02…
https://git.kernel.org/stable/c/5895d0164c84d7fec…
https://git.kernel.org/stable/c/097cd68f46686391a…
https://git.kernel.org/stable/c/13b8b9d6f59ef17fb…
https://git.kernel.org/stable/c/040d159a45ded7f33…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e4b168c64da06954be5d520f6c16469b1cadc069 , < d39366c169f873edc8ad21fdf6bf08d1de603dbb (git) Affected: 3fd945a79e147ee10f84213976889b29049c3519 , < 657dc653b06a3cc0282aea447a3f137fa94066a4 (git) Affected: 3fd945a79e147ee10f84213976889b29049c3519 , < 5895d0164c84d7fec6abc198920c257f55c51899 (git) Affected: 3fd945a79e147ee10f84213976889b29049c3519 , < 097cd68f46686391a98f2618188f0cb7b7570de2 (git) Affected: 3fd945a79e147ee10f84213976889b29049c3519 , < 13b8b9d6f59ef17fb96c298c3a0d62a8306950cc (git) Affected: 3fd945a79e147ee10f84213976889b29049c3519 , < 040d159a45ded7f33201421a81df0aa2a86e5a0b (git) Affected: 0f2b2d9e881c90402dbe28f9ba831775b7992e1f (git) Affected: d42ad3f161a5a487f81915c406f46943c7187a0a (git) Affected: 6.1.125 , < 6.1.191 (semver) Affected: 5.10.234 , < 5.11 (semver) Affected: 5.15.177 , < 5.16 (semver)
Linux	Linux	Affected: 6.6 Unaffected: 0 , < 6.6 (semver) Unaffected: 6.1.191 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-43450 (GCVE-0-2026-43450)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-11-06 15:42

Title

netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table()

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() nfnl_cthelper_dump_table() has a 'goto restart' that jumps to a label inside the for loop body. When the "last" helper saved in cb->args[1] is deleted between dump rounds, every entry fails the (cur != last) check, so cb->args[1] is never cleared. The for loop finishes with cb->args[0] == nf_ct_helper_hsize, and the 'goto restart' jumps back into the loop body bypassing the bounds check, causing an 8-byte out-of-bounds read on nf_ct_helper_hash[nf_ct_helper_hsize]. The 'goto restart' block was meant to re-traverse the current bucket when "last" is no longer found, but it was placed after the for loop instead of inside it. Move the block into the for loop body so that the restart only occurs while cb->args[0] is still within bounds. BUG: KASAN: slab-out-of-bounds in nfnl_cthelper_dump_table+0x9f/0x1b0 Read of size 8 at addr ffff888104ca3000 by task poc_cthelper/131 Call Trace: nfnl_cthelper_dump_table+0x9f/0x1b0 netlink_dump+0x333/0x880 netlink_recvmsg+0x3e2/0x4b0 sock_recvmsg+0xde/0xf0 __sys_recvfrom+0x150/0x200 __x64_sys_recvfrom+0x76/0x90 do_syscall_64+0xc3/0x6e0 Allocated by task 1: __kvmalloc_node_noprof+0x21b/0x700 nf_ct_alloc_hashtable+0x65/0xd0 nf_conntrack_helper_init+0x21/0x60 nf_conntrack_init_start+0x18d/0x300 nf_conntrack_standalone_init+0x12/0xc0

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-06 15:39 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/0605e1985a95d4334…
https://git.kernel.org/stable/c/92441f6d9405a0c18…
https://git.kernel.org/stable/c/3cc328ffc32ddb389…
https://git.kernel.org/stable/c/4a1f6ee69267a5f52…
https://git.kernel.org/stable/c/894c5780ddadd5fde…
https://git.kernel.org/stable/c/05018cd9370f77bb1…
https://git.kernel.org/stable/c/61b3a1f8621df1a59…
https://git.kernel.org/stable/c/6dcee8496d53165b2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 0605e1985a95d4334a67869aee45a47e82301abf (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 92441f6d9405a0c18d03f278b395e782f79a4a30 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 3cc328ffc32ddb389cba7b78b6aa95d995c2876e (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 4a1f6ee69267a5f524102c028981410eeacfa3da (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 894c5780ddadd5fde0e16f66587918e6be1504c4 (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 05018cd9370f77bb18fbf6e15ff33c7a06f10b3c (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 61b3a1f8621df1a5928118313f133996f6a786db (git) Affected: 12f7a505331e6b2754684b509f2ac8f0011ce644 , < 6dcee8496d53165b2d8a5909b3050b62ae71fe89 (git)
Linux	Linux	Affected: 3.6 Unaffected: 0 , < 3.6 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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      {
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          {
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                "id": "CVE-2026-43450",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table()\n\nnfnl_cthelper_dump_table() has a \u0027goto restart\u0027 that jumps to a label\ninside the for loop body.  When the \"last\" helper saved in cb-\u003eargs[1]\nis deleted between dump rounds, every entry fails the (cur != last)\ncheck, so cb-\u003eargs[1] is never cleared.  The for loop finishes with\ncb-\u003eargs[0] == nf_ct_helper_hsize, and the \u0027goto restart\u0027 jumps back\ninto the loop body bypassing the bounds check, causing an 8-byte\nout-of-bounds read on nf_ct_helper_hash[nf_ct_helper_hsize].\n\nThe \u0027goto restart\u0027 block was meant to re-traverse the current bucket\nwhen \"last\" is no longer found, but it was placed after the for loop\ninstead of inside it.  Move the block into the for loop body so that\nthe restart only occurs while cb-\u003eargs[0] is still within bounds.\n\n BUG: KASAN: slab-out-of-bounds in nfnl_cthelper_dump_table+0x9f/0x1b0\n Read of size 8 at addr ffff888104ca3000 by task poc_cthelper/131\n Call Trace:\n  nfnl_cthelper_dump_table+0x9f/0x1b0\n  netlink_dump+0x333/0x880\n  netlink_recvmsg+0x3e2/0x4b0\n  sock_recvmsg+0xde/0xf0\n  __sys_recvfrom+0x150/0x200\n  __x64_sys_recvfrom+0x76/0x90\n  do_syscall_64+0xc3/0x6e0\n\n Allocated by task 1:\n  __kvmalloc_node_noprof+0x21b/0x700\n  nf_ct_alloc_hashtable+0x65/0xd0\n  nf_conntrack_helper_init+0x21/0x60\n  nf_conntrack_init_start+0x18d/0x300\n  nf_conntrack_standalone_init+0x12/0xc0"
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CVE-2026-43454 (GCVE-0-2026-43454)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-08-05 12:28

Title

netfilter: nf_tables: Fix for duplicate device in netdev hooks

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix for duplicate device in netdev hooks When handling NETDEV_REGISTER notification, duplicate device registration must be avoided since the device may have been added by nft_netdev_hook_alloc() already when creating the hook.

Severity

7.8 (High)


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

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6d2a95c6890577cc3…
https://git.kernel.org/stable/c/2041cdb0780416115…
https://git.kernel.org/stable/c/b7cdc5a97d02c943f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a331b78a552551d0e404e58e6390b1c828d6af8f , < 6d2a95c6890577cc3eab2b20018e16850d7fb094 (git) Affected: a331b78a552551d0e404e58e6390b1c828d6af8f , < 2041cdb078041611510fc189410bc70b29f688fb (git) Affected: a331b78a552551d0e404e58e6390b1c828d6af8f , < b7cdc5a97d02c943f4bdde4d5767ad0c13cad92b (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
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          "programFiles": [
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CVE-2026-45970 (GCVE-0-2026-45970)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:18 – Updated: 2026-10-19 19:26

Title

bonding: alb: fix UAF in rlb_arp_recv during bond up/down

Summary

In the Linux kernel, the following vulnerability has been resolved: bonding: alb: fix UAF in rlb_arp_recv during bond up/down The ALB RX path may access rx_hashtbl concurrently with bond teardown. During rapid bond up/down cycles, rlb_deinitialize() frees rx_hashtbl while RX handlers are still running, leading to a null pointer dereference detected by KASAN. However, the root cause is that rlb_arp_recv() can still be accessed after setting recv_probe to NULL, which is actually a use-after-free (UAF) issue. That is the reason for using the referenced commit in the Fixes tag. [ 214.174138] Oops: general protection fault, probably for non-canonical address 0xdffffc000000001d: 0000 [#1] SMP KASAN PTI [ 214.186478] KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef] [ 214.194933] CPU: 30 UID: 0 PID: 2375 Comm: ping Kdump: loaded Not tainted 6.19.0-rc8+ #2 PREEMPT(voluntary) [ 214.205907] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.14.0 01/14/2022 [ 214.214357] RIP: 0010:rlb_arp_recv+0x505/0xab0 [bonding] [ 214.220320] Code: 0f 85 2b 05 00 00 48 b8 00 00 00 00 00 fc ff df 40 0f b6 ed 48 c1 e5 06 49 03 ad 78 01 00 00 48 8d 7d 28 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 12 05 00 00 80 7d 28 00 0f 84 8c 00 [ 214.241280] RSP: 0018:ffffc900073d8870 EFLAGS: 00010206 [ 214.247116] RAX: dffffc0000000000 RBX: ffff888168556822 RCX: ffff88816855681e [ 214.255082] RDX: 000000000000001d RSI: dffffc0000000000 RDI: 00000000000000e8 [ 214.263048] RBP: 00000000000000c0 R08: 0000000000000002 R09: ffffed11192021c8 [ 214.271013] R10: ffff8888c9010e43 R11: 0000000000000001 R12: 1ffff92000e7b119 [ 214.278978] R13: ffff8888c9010e00 R14: ffff888168556822 R15: ffff888168556810 [ 214.286943] FS: 00007f85d2d9cb80(0000) GS:ffff88886ccb3000(0000) knlGS:0000000000000000 [ 214.295966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 214.302380] CR2: 00007f0d047b5e34 CR3: 00000008a1c2e002 CR4: 00000000001726f0 [ 214.310347] Call Trace: [ 214.313070] <IRQ> [ 214.315318] ? __pfx_rlb_arp_recv+0x10/0x10 [bonding] [ 214.320975] bond_handle_frame+0x166/0xb60 [bonding] [ 214.326537] ? __pfx_bond_handle_frame+0x10/0x10 [bonding] [ 214.332680] __netif_receive_skb_core.constprop.0+0x576/0x2710 [ 214.339199] ? __pfx_arp_process+0x10/0x10 [ 214.343775] ? sched_balance_find_src_group+0x98/0x630 [ 214.349513] ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10 [ 214.356513] ? arp_rcv+0x307/0x690 [ 214.360311] ? __pfx_arp_rcv+0x10/0x10 [ 214.364499] ? __lock_acquire+0x58c/0xbd0 [ 214.368975] __netif_receive_skb_one_core+0xae/0x1b0 [ 214.374518] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 214.380743] ? lock_acquire+0x10b/0x140 [ 214.385026] process_backlog+0x3f1/0x13a0 [ 214.389502] ? process_backlog+0x3aa/0x13a0 [ 214.394174] __napi_poll.constprop.0+0x9f/0x370 [ 214.399233] net_rx_action+0x8c1/0xe60 [ 214.403423] ? __pfx_net_rx_action+0x10/0x10 [ 214.408193] ? lock_acquire.part.0+0xbd/0x260 [ 214.413058] ? sched_clock_cpu+0x6c/0x540 [ 214.417540] ? mark_held_locks+0x40/0x70 [ 214.421920] handle_softirqs+0x1fd/0x860 [ 214.426302] ? __pfx_handle_softirqs+0x10/0x10 [ 214.431264] ? __neigh_event_send+0x2d6/0xf50 [ 214.436131] do_softirq+0xb1/0xf0 [ 214.439830] </IRQ> The issue is reproducible by repeatedly running ip link set bond0 up/down while receiving ARP messages, where rlb_arp_recv() can race with rlb_deinitialize() and dereference a freed rx_hashtbl entry. Fix this by setting recv_probe to NULL and then calling synchronize_net() to wait for any concurrent RX processing to finish. This ensures that no RX handler can access rx_hashtbl after it is freed in bond_alb_deinitialize().

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:18 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/fd54ddc929be1d6c3…
https://git.kernel.org/stable/c/de7c097800f07f3c1…
https://git.kernel.org/stable/c/db5435b5342e3aaa4…
https://git.kernel.org/stable/c/f94a0de7b9f32745a…
https://git.kernel.org/stable/c/c65cdf46ce340c9c0…
https://git.kernel.org/stable/c/fef13c403be3fb685…
https://git.kernel.org/stable/c/d31065526f160ee02…
https://git.kernel.org/stable/c/e6834a4c474697df2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < de7c097800f07f3c108185c7a38b53a530ba30ff (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < db5435b5342e3aaa4521d0f3ccfe94316b253ca1 (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < f94a0de7b9f32745a14a1621c63087a092823587 (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < c65cdf46ce340c9c00fbbaf84599d2daff43626e (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < fef13c403be3fb685cb06419e6b3623106aab5ba (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < d31065526f160ee0244a719230aa069daca2bf4d (git) Affected: 3aba891dde3842d89ad022237b99c1ed308040b0 , < e6834a4c474697df23ab9948fd3577b26bf48656 (git)
Linux	Linux	Affected: 3.0 Unaffected: 0 , < 3.0 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (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)

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-45970",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:18:40.906017Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
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            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-19T19:26:40.725Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/bonding/bond_main.c"
          ],
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          "vendor": "Linux",
          "versions": [
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            },
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            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "f94a0de7b9f32745a14a1621c63087a092823587",
              "status": "affected",
              "version": "3aba891dde3842d89ad022237b99c1ed308040b0",
              "versionType": "git"
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              "lessThan": "c65cdf46ce340c9c00fbbaf84599d2daff43626e",
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              "status": "affected",
              "version": "3aba891dde3842d89ad022237b99c1ed308040b0",
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            },
            {
              "lessThan": "e6834a4c474697df23ab9948fd3577b26bf48656",
              "status": "affected",
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              "versionType": "git"
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        },
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          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "3.0"
            },
            {
              "lessThan": "3.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.252",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.252",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.202",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.165",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.128",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.75",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.4",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "3.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: alb: fix UAF in rlb_arp_recv during bond up/down\n\nThe ALB RX path may access rx_hashtbl concurrently with bond\nteardown. During rapid bond up/down cycles, rlb_deinitialize()\nfrees rx_hashtbl while RX handlers are still running, leading\nto a null pointer dereference detected by KASAN.\n\nHowever, the root cause is that rlb_arp_recv() can still be accessed\nafter setting recv_probe to NULL, which is actually a use-after-free\n(UAF) issue. That is the reason for using the referenced commit in the\nFixes tag.\n\n[  214.174138] Oops: general protection fault, probably for non-canonical address 0xdffffc000000001d: 0000 [#1] SMP KASAN PTI\n[  214.186478] KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef]\n[  214.194933] CPU: 30 UID: 0 PID: 2375 Comm: ping Kdump: loaded Not tainted 6.19.0-rc8+ #2 PREEMPT(voluntary)\n[  214.205907] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.14.0 01/14/2022\n[  214.214357] RIP: 0010:rlb_arp_recv+0x505/0xab0 [bonding]\n[  214.220320] Code: 0f 85 2b 05 00 00 48 b8 00 00 00 00 00 fc ff df 40 0f b6 ed 48 c1 e5 06 49 03 ad 78 01 00 00 48 8d 7d 28 48 89 fa 48 c1 ea 03 \u003c0f\u003e b6\n 04 02 84 c0 74 06 0f 8e 12 05 00 00 80 7d 28 00 0f 84 8c 00\n[  214.241280] RSP: 0018:ffffc900073d8870 EFLAGS: 00010206\n[  214.247116] RAX: dffffc0000000000 RBX: ffff888168556822 RCX: ffff88816855681e\n[  214.255082] RDX: 000000000000001d RSI: dffffc0000000000 RDI: 00000000000000e8\n[  214.263048] RBP: 00000000000000c0 R08: 0000000000000002 R09: ffffed11192021c8\n[  214.271013] R10: ffff8888c9010e43 R11: 0000000000000001 R12: 1ffff92000e7b119\n[  214.278978] R13: ffff8888c9010e00 R14: ffff888168556822 R15: ffff888168556810\n[  214.286943] FS:  00007f85d2d9cb80(0000) GS:ffff88886ccb3000(0000) knlGS:0000000000000000\n[  214.295966] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  214.302380] CR2: 00007f0d047b5e34 CR3: 00000008a1c2e002 CR4: 00000000001726f0\n[  214.310347] Call Trace:\n[  214.313070]  \u003cIRQ\u003e\n[  214.315318]  ? __pfx_rlb_arp_recv+0x10/0x10 [bonding]\n[  214.320975]  bond_handle_frame+0x166/0xb60 [bonding]\n[  214.326537]  ? __pfx_bond_handle_frame+0x10/0x10 [bonding]\n[  214.332680]  __netif_receive_skb_core.constprop.0+0x576/0x2710\n[  214.339199]  ? __pfx_arp_process+0x10/0x10\n[  214.343775]  ? sched_balance_find_src_group+0x98/0x630\n[  214.349513]  ? __pfx___netif_receive_skb_core.constprop.0+0x10/0x10\n[  214.356513]  ? arp_rcv+0x307/0x690\n[  214.360311]  ? __pfx_arp_rcv+0x10/0x10\n[  214.364499]  ? __lock_acquire+0x58c/0xbd0\n[  214.368975]  __netif_receive_skb_one_core+0xae/0x1b0\n[  214.374518]  ? __pfx___netif_receive_skb_one_core+0x10/0x10\n[  214.380743]  ? lock_acquire+0x10b/0x140\n[  214.385026]  process_backlog+0x3f1/0x13a0\n[  214.389502]  ? process_backlog+0x3aa/0x13a0\n[  214.394174]  __napi_poll.constprop.0+0x9f/0x370\n[  214.399233]  net_rx_action+0x8c1/0xe60\n[  214.403423]  ? __pfx_net_rx_action+0x10/0x10\n[  214.408193]  ? lock_acquire.part.0+0xbd/0x260\n[  214.413058]  ? sched_clock_cpu+0x6c/0x540\n[  214.417540]  ? mark_held_locks+0x40/0x70\n[  214.421920]  handle_softirqs+0x1fd/0x860\n[  214.426302]  ? __pfx_handle_softirqs+0x10/0x10\n[  214.431264]  ? __neigh_event_send+0x2d6/0xf50\n[  214.436131]  do_softirq+0xb1/0xf0\n[  214.439830]  \u003c/IRQ\u003e\n\nThe issue is reproducible by repeatedly running\nip link set bond0 up/down while receiving ARP messages, where\nrlb_arp_recv() can race with rlb_deinitialize() and dereference\na freed rx_hashtbl entry.\n\nFix this by setting recv_probe to NULL and then calling\nsynchronize_net() to wait for any concurrent RX processing to finish.\nThis ensures that no RX handler can access rx_hashtbl after it is freed\nin bond_alb_deinitialize()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is reached via a received ARP frame on a bond slave; an unprivileged local user can reproduce the entire scenario inside a user namespace (`unshare -Urn`) by creating a balance-alb bond over veths, injecting ARP locally, and cycling the bond up/down, so no network/adjacent position is required.\nAC:L - In the user-namespace scenario the attacker controls both sides of the race \u2014 the ARP injection (RX side) and the bond up/down cycling (free side) \u2014 and the upstream report confirms it is readily reproducible by repeated cycling, so the race can be won reliably.\nPR:L - Triggering the free requires CAP_NET_ADMIN on the bond, but this is obtainable by any unprivileged user via a user+network namespace (which also grants CAP_NET_RAW for ARP injection), so only basic local user privileges are needed.\nUI:N - No victim interaction is required; the attacker drives both the packet receipt and the bond teardown themselves.\nS:U - The vulnerability and its impact are confined to the kernel\u0027s own security authority; there is no crossing of a VM/IOMMU/sandbox boundary.\nC:H - The UAF reads the contents of the freed `rx_hashtbl` object (after potential reallocation), which can be leveraged to disclose attacker-influenced or adjacent kernel heap data.\nI:H - The UAF writes into the freed/reallocated object, including copying 6 attacker-controlled bytes (the ARP source MAC) and link-pointer updates, providing a write primitive into reclaimed heap memory exploitable for control-flow corruption.\nA:H - The bug causes a KASAN-detected general protection fault / kernel oops (as shown in the report), reliably crashing the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:28:58.557Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fd54ddc929be1d6c3b3b7b35d6d4642a5d9e803c"
        },
        {
          "url": "https://git.kernel.org/stable/c/de7c097800f07f3c108185c7a38b53a530ba30ff"
        },
        {
          "url": "https://git.kernel.org/stable/c/db5435b5342e3aaa4521d0f3ccfe94316b253ca1"
        },
        {
          "url": "https://git.kernel.org/stable/c/f94a0de7b9f32745a14a1621c63087a092823587"
        },
        {
          "url": "https://git.kernel.org/stable/c/c65cdf46ce340c9c00fbbaf84599d2daff43626e"
        },
        {
          "url": "https://git.kernel.org/stable/c/fef13c403be3fb685cb06419e6b3623106aab5ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/d31065526f160ee0244a719230aa069daca2bf4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6834a4c474697df23ab9948fd3577b26bf48656"
        }
      ],
      "title": "bonding: alb: fix UAF in rlb_arp_recv during bond up/down",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-45970",
    "datePublished": "2026-05-27T12:18:29.878Z",
    "dateReserved": "2026-05-13T15:03:33.089Z",
    "dateUpdated": "2026-10-19T19:26:40.725Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-46120 (GCVE-0-2026-46120)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-10-19 19:36

Title

ip6_gre: Use cached t->net in ip6erspan_changelink().

Summary

In the Linux kernel, the following vulnerability has been resolved: ip6_gre: Use cached t->net in ip6erspan_changelink(). After commit 5e72ce3e3980 ("net: ipv6: Use link netns in newlink() of rtnl_link_ops"), ip6erspan_newlink() correctly resolves the per-netns ip6gre hash via link_net. ip6erspan_changelink() was not converted in that series and still uses dev_net(dev), which diverges from the device's creation netns after IFLA_NET_NS_FD migration. This re-inserts the tunnel into the wrong per-netns hash. The original netns keeps a stale entry. When that netns is later destroyed, ip6gre_exit_rtnl_net() walks the stale entry, producing a slab-use-after-free reported by KASAN, followed by a kernel BUG at net/core/dev.c (LIST_POISON1) in unregister_netdevice_many_notify(). Reachable from an unprivileged user namespace (unshare --user --map-root-user --net). ip6gre_changelink() earlier in the same file already uses the cached t->net; only ip6erspan_changelink() has the wrong shape.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 15:20 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

9 references

URL	Tags
https://git.kernel.org/stable/c/7bd0f2b162b426b34…
https://git.kernel.org/stable/c/01b71ff2857d35983…
https://git.kernel.org/stable/c/0fcf6731706f73494…
https://git.kernel.org/stable/c/eca62bb0569de4d43…
https://git.kernel.org/stable/c/311fdd26eb4443d43…
https://git.kernel.org/stable/c/e70cfb40c3a99b232…
https://git.kernel.org/stable/c/cf7fc624329e76c63…
https://git.kernel.org/stable/c/1d324c2f43f70c965…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Linux	Linux	Affected: 2d665034f239412927b1e71329f20f001c92da09 , < 7bd0f2b162b426b343a114e1b329f0d8d14fdc6e (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < 01b71ff2857d3598337de11e7840a8e3ff21553c (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < 0fcf6731706f73494245a9c0d64f93bebf95bb51 (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < eca62bb0569de4d43a4dac06a2092a9d4ca1d702 (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < 311fdd26eb4443d43b909cc67a10f3a5fd1b21b2 (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < e70cfb40c3a99b232cd42c6a6a10f0d8e039dc82 (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < cf7fc624329e76c6394653d12353e1d033adea91 (git) Affected: 2d665034f239412927b1e71329f20f001c92da09 , < 1d324c2f43f70c965f25c58cc3611c779adbe47e (git) Affected: c6d72628352c949629af619b77b042e0fb5245e7 (git) Affected: 4.16.12 , < 4.17 (semver)
Linux	Linux	Affected: 4.17 Unaffected: 0 , < 4.17 (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)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-15T01:20:38.041Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
          }
        ],
        "x_adpType": "supplier"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-46120",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
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CVE-2026-53026 (GCVE-0-2026-53026)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-08-05 12:32

Title

NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg

Summary

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg In nfsd4_add_rdaccess_to_wrdeleg, if fp->fi_fds[O_RDONLY] is already set by another thread, __nfs4_file_get_access should not be called to increment the nfs4_file access count since that was already done by the thread that added READ access to the file. The extra fi_access count in nfs4_file can prevent the corresponding nfsd_file from being freed. When stopping nfs-server service, these extra access counts trigger a BUG in kmem_cache_destroy() that shows nfsd_file object remaining on __kmem_cache_shutdown. This problem can be reproduced by running the Git project's test suite over NFS.

Severity

7.5 (High)


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

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/4584229395d0d65bd…
https://git.kernel.org/stable/c/b81572b073441dfd3…
https://git.kernel.org/stable/c/b48f44f36e6607b2f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c07dc84ed67c5a182273171639bacbbb87c12175 , < 4584229395d0d65bd517780afe97ffea07cb2c3d (git) Affected: 8072e34e1387d03102b788677d491e2bcceef6f5 , < b81572b073441dfd32213e41857676d0dbff4665 (git) Affected: 8072e34e1387d03102b788677d491e2bcceef6f5 , < b48f44f36e6607b2f818560f19deb86b4a9c717b (git) Affected: 6.18.4 , < 6.18.33 (semver)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

ALSA-2026:61887 (CVE-2024-53685)

CVE-2024-53685 (GCVE-0-2024-53685)

CVE-2025-21834 (GCVE-0-2025-21834)

CVE-2026-23003 (GCVE-0-2026-23003)

CVE-2026-43408 (GCVE-0-2026-43408)

CVE-2026-43419 (GCVE-0-2026-43419)

CVE-2026-43450 (GCVE-0-2026-43450)

CVE-2026-43454 (GCVE-0-2026-43454)

CVE-2026-45970 (GCVE-0-2026-45970)

CVE-2026-46120 (GCVE-0-2026-46120)

CVE-2026-53026 (GCVE-0-2026-53026)

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Nomenclature

Vulnerability timeline

Related by attack behaviour