Vulnerability-Lookup

alsa-2026:42919

Vulnerability from osv_almalinux

Published

2026-07-21 00:00

Modified

2026-07-24 10:19

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: crypto: af_alg - zero initialize memory allocated via sock_kmalloc (CVE-2025-71113)
kernel: Linux kernel: Denial of Service due to memory leak in tpm2_load_cmd (CVE-2025-71147)
kernel: flex_proportions: make fprop_new_period() hardirq safe (CVE-2026-23168)
kernel: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (CVE-2026-31530)
kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (CVE-2026-46116)
kernel: fanotify: fix false positive on permission events (CVE-2026-46150)
kernel: drm: Set old handle to NULL before prime swap in change_handle (CVE-2026-46215)
kernel: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl() (CVE-2026-52976)
kernel: drm/xe/dma-buf: fix UAF with retry loop (CVE-2026-52950)
kernel: ice: fix double-free of tx_buf skb (CVE-2026-53009)
kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (CVE-2026-53071)
kernel: can: bcm: thrtimer use-after-free during RX operation teardown ()

Bug Fix(es) and Enhancement(s):

nfsd_file slab cache objects remaining on kmem_cache_shutdown during nfsd teardown while running bz1477872 testcase (JIRA:AlmaLinux-173103)
tools/lib/perf/Makefile: libperf includes appended after CFLAGS causes parallel build race, breaking kernel builds [almalinux-10.2.z] (JIRA:AlmaLinux-183975)
[AlmaLinux10-debug]: BUG: KASAN: slab-use-after-free in __pv_queued_spin_lock_slowpath [almalinux-10.2.z] (JIRA:AlmaLinux-186311)
ice: driver update 2026-06, part 1 [almalinux-10.2.z] (JIRA:AlmaLinux-191324)

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-2026:42919	ADVISORY
	https://access.redhat.com/security/cve/CVE-2025-71113	REPORT
	https://access.redhat.com/security/cve/CVE-2025-71147	REPORT
	https://access.redhat.com/security/cve/CVE-2026-23168	REPORT
	https://access.redhat.com/security/cve/CVE-2026-31530	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46116	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46150	REPORT
	https://access.redhat.com/security/cve/CVE-2026-46215	REPORT
	https://access.redhat.com/security/cve/CVE-2026-52950	REPORT
	https://access.redhat.com/security/cve/CVE-2026-52976	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53009	REPORT
	https://access.redhat.com/security/cve/CVE-2026-53071	REPORT
	https://bugzilla.redhat.com/2429611	REPORT
	https://bugzilla.redhat.com/2432366	REPORT
	https://bugzilla.redhat.com/2439941	REPORT
	https://bugzilla.redhat.com/2460644	REPORT
	https://bugzilla.redhat.com/2482523	REPORT
	https://bugzilla.redhat.com/2482612	REPORT
	https://bugzilla.redhat.com/2482615	REPORT
	https://bugzilla.redhat.com/2492284	REPORT
	https://bugzilla.redhat.com/2492318	REPORT
	https://bugzilla.redhat.com/2492390	REPORT
	https://bugzilla.redhat.com/2492458	REPORT
	https://errata.almalinux.org/10/ALSA-2026-42919.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: crypto: af_alg - zero initialize memory allocated via sock_kmalloc (CVE-2025-71113)\n  * kernel: Linux kernel: Denial of Service due to memory leak in tpm2_load_cmd (CVE-2025-71147)\n  * kernel: flex_proportions: make fprop_new_period() hardirq safe (CVE-2026-23168)\n  * kernel: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (CVE-2026-31530)\n  * kernel: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete (CVE-2026-46116)\n  * kernel: fanotify: fix false positive on permission events (CVE-2026-46150)\n  * kernel: drm: Set old handle to NULL before prime swap in change_handle (CVE-2026-46215)\n  * kernel: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl() (CVE-2026-52976)\n  * kernel: drm/xe/dma-buf: fix UAF with retry loop (CVE-2026-52950)\n  * kernel: ice: fix double-free of tx_buf skb (CVE-2026-53009)\n  * kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (CVE-2026-53071)\n  * kernel: can: bcm: thrtimer use-after-free during RX operation teardown ()\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * nfsd_file slab cache objects remaining on kmem_cache_shutdown during nfsd teardown while running bz1477872 testcase (JIRA:AlmaLinux-173103)\n  * tools/lib/perf/Makefile: libperf includes appended after CFLAGS causes parallel build race, breaking kernel builds [almalinux-10.2.z] (JIRA:AlmaLinux-183975)\n  * [AlmaLinux10-debug]: BUG: KASAN: slab-use-after-free in __pv_queued_spin_lock_slowpath [almalinux-10.2.z] (JIRA:AlmaLinux-186311)\n  * ice: driver update 2026-06, part 1 [almalinux-10.2.z] (JIRA:AlmaLinux-191324)\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-2026:42919",
  "modified": "2026-07-24T10:19:17Z",
  "published": "2026-07-21T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:42919"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-71113"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-71147"
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      "url": "https://access.redhat.com/security/cve/CVE-2026-23168"
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    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31530"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46116"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46150"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46215"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-52950"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-52976"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53009"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53071"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2429611"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2432366"
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    {
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      "url": "https://bugzilla.redhat.com/2439941"
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      "url": "https://bugzilla.redhat.com/2460644"
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    {
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      "url": "https://bugzilla.redhat.com/2482523"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482612"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482615"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2492284"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2492318"
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    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2492390"
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    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2492458"
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    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-42919.html"
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  "related": [
    "CVE-2025-71113",
    "CVE-2025-71147",
    "CVE-2026-23168",
    "CVE-2026-31530",
    "CVE-2026-46116",
    "CVE-2026-46150",
    "CVE-2026-46215",
    "CVE-2026-52976",
    "CVE-2026-52950",
    "CVE-2026-53009",
    "CVE-2026-53071"
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update"
}

CVE-2025-71113 (GCVE-0-2025-71113)

Vulnerability from cvelistv5 – Published: 2026-01-14 15:05 – Updated: 2026-07-14 12:44

Title

crypto: af_alg - zero initialize memory allocated via sock_kmalloc

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - zero initialize memory allocated via sock_kmalloc Several crypto user API contexts and requests allocated with sock_kmalloc() were left uninitialized, relying on callers to set fields explicitly. This resulted in the use of uninitialized data in certain error paths or when new fields are added in the future. The ACVP patches also contain two user-space interface files: algif_kpp.c and algif_akcipher.c. These too rely on proper initialization of their context structures. A particular issue has been observed with the newly added 'inflight' variable introduced in af_alg_ctx by commit: 67b164a871af ("crypto: af_alg - Disallow multiple in-flight AIO requests") Because the context is not memset to zero after allocation, the inflight variable has contained garbage values. As a result, af_alg_alloc_areq() has incorrectly returned -EBUSY randomly when the garbage value was interpreted as true: https://github.com/gregkh/linux/blame/master/crypto/af_alg.c#L1209 The check directly tests ctx->inflight without explicitly comparing against true/false. Since inflight is only ever set to true or false later, an uninitialized value has triggered -EBUSY failures. Zero-initializing memory allocated with sock_kmalloc() ensures inflight and other fields start in a known state, removing random issues caused by uninitialized data.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e125c8e346e4eb7b3…
https://git.kernel.org/stable/c/543bf004e4eafbb30…
https://git.kernel.org/stable/c/f81244fd6b14fecfa…
https://git.kernel.org/stable/c/84238876e3b3b262c…
https://git.kernel.org/stable/c/5a4b65523608974a8…
https://git.kernel.org/stable/c/51a5ab36084f3251e…
https://git.kernel.org/stable/c/6f6e309328d53a10c…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

5 products

Vendor	Product	Version
Linux	Linux	Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < e125c8e346e4eb7b3e854c862fcb4392bc13ddba (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 543bf004e4eafbb302b1e6c78570d425d2ca13a0 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < f81244fd6b14fecfa93b66b6bb1d59f96554e550 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 84238876e3b3b262cf62d5f4d1338e983fb27010 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 5a4b65523608974a81edbe386f8a667a3e10c726 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 51a5ab36084f3251ef87eda3e6a6236f6488925e (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 6f6e309328d53a10c0fe1f77dec2db73373179b6 (git)
Linux	Linux	Affected: 2.6.38 Unaffected: 0 , < 2.6.38 (semver) Unaffected: 5.10.248 , ≤ 5.10.* (semver) Unaffected: 5.15.198 , ≤ 5.15.* (semver) Unaffected: 6.1.160 , ≤ 6.1.* (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.64 , ≤ 6.12.* (semver) Unaffected: 6.18.3 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)

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CVE-2025-71147 (GCVE-0-2025-71147)

Vulnerability from cvelistv5 – Published: 2026-01-23 14:15 – Updated: 2026-06-11 18:44

Title

KEYS: trusted: Fix a memory leak in tpm2_load_cmd

Summary

In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Fix a memory leak in tpm2_load_cmd 'tpm2_load_cmd' allocates a tempoary blob indirectly via 'tpm2_key_decode' but it is not freed in the failure paths. Address this by wrapping the blob into with a cleanup helper.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/3fd7df4636d8fd5e3…
https://git.kernel.org/stable/c/af0689cafb127a8d1…
https://git.kernel.org/stable/c/19166de9737218b77…
https://git.kernel.org/stable/c/9b015f2918b95bdde…
https://git.kernel.org/stable/c/9e7c63c69f57b1db1…
https://git.kernel.org/stable/c/62cd5d480b9762ce7…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f2219745250f388edacabe6cca73654131c67d0a , < 3fd7df4636d8fd5e3592371967a5941204368936 (git) Affected: f2219745250f388edacabe6cca73654131c67d0a , < af0689cafb127a8d1af78cc8b72585c9b2a19ecd (git) Affected: f2219745250f388edacabe6cca73654131c67d0a , < 19166de9737218b77122c41a5730ac87025e089f (git) Affected: f2219745250f388edacabe6cca73654131c67d0a , < 9b015f2918b95bdde2ca9cefa10ef02b138aae1e (git) Affected: f2219745250f388edacabe6cca73654131c67d0a , < 9e7c63c69f57b1db1a8a1542359a6167ff8fcef1 (git) Affected: f2219745250f388edacabe6cca73654131c67d0a , < 62cd5d480b9762ce70d720a81fa5b373052ae05f (git)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 5.15.198 , ≤ 5.15.* (semver) Unaffected: 6.1.160 , ≤ 6.1.* (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.64 , ≤ 6.12.* (semver) Unaffected: 6.18.3 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

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CVE-2026-23168 (GCVE-0-2026-23168)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:01 – Updated: 2026-05-11 22:01

Title

flex_proportions: make fprop_new_period() hardirq safe

Summary

In the Linux kernel, the following vulnerability has been resolved: flex_proportions: make fprop_new_period() hardirq safe Bernd has reported a lockdep splat from flexible proportions code that is essentially complaining about the following race: <timer fires> run_timer_softirq - we are in softirq context call_timer_fn writeout_period fprop_new_period write_seqcount_begin(&p->sequence); <hardirq is raised> ... blk_mq_end_request() blk_update_request() ext4_end_bio() folio_end_writeback() __wb_writeout_add() __fprop_add_percpu_max() if (unlikely(max_frac < FPROP_FRAC_BASE)) { fprop_fraction_percpu() seq = read_seqcount_begin(&p->sequence); - sees odd sequence so loops indefinitely Note that a deadlock like this is only possible if the bdi has configured maximum fraction of writeout throughput which is very rare in general but frequent for example for FUSE bdis. To fix this problem we have to make sure write section of the sequence counter is irqsafe.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/0acc9ba7a1b5ba4d9…
https://git.kernel.org/stable/c/884b2590ffcc7222c…
https://git.kernel.org/stable/c/78ede9ebd679dadf4…
https://git.kernel.org/stable/c/b91a84299d72ae0e0…
https://git.kernel.org/stable/c/dd9e2f5b38f1fdd49…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a91befde350375b1ff954635acdde14dc92cd9a8 , < 0acc9ba7a1b5ba4d998c5753e709be904e179b75 (git) Affected: a91befde350375b1ff954635acdde14dc92cd9a8 , < 884b2590ffcc7222cbbd6298051f4c243cc36f5d (git) Affected: a91befde350375b1ff954635acdde14dc92cd9a8 , < 78ede9ebd679dadf480dce6f7b798e3603f88348 (git) Affected: a91befde350375b1ff954635acdde14dc92cd9a8 , < b91a84299d72ae0e05551e851e47cd3008bd025b (git) Affected: a91befde350375b1ff954635acdde14dc92cd9a8 , < dd9e2f5b38f1fdd49b1ab6d3a85f81c14369eacc (git)
Linux	Linux	Affected: 6.0 Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.162 , ≤ 6.1.* (semver) Unaffected: 6.6.123 , ≤ 6.6.* (semver) Unaffected: 6.12.69 , ≤ 6.12.* (semver) Unaffected: 6.18.9 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-31530 (GCVE-0-2026-31530)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-05-11 22:10

Title

cxl/port: Fix use after free of parent_port in cxl_detach_ep()

Summary

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix use after free of parent_port in cxl_detach_ep() cxl_detach_ep() is called during bottom-up removal when all CXL memory devices beneath a switch port have been removed. For each port in the hierarchy it locks both the port and its parent, removes the endpoint, and if the port is now empty, marks it dead and unregisters the port by calling delete_switch_port(). There are two places during this work where the parent_port may be used after freeing: First, a concurrent detach may have already processed a port by the time a second worker finds it via bus_find_device(). Without pinning parent_port, it may already be freed when we discover port->dead and attempt to unlock the parent_port. In a production kernel that's a silent memory corruption, with lock debug, it looks like this: []DEBUG_LOCKS_WARN_ON(__owner_task(owner) != get_current()) []WARNING: kernel/locking/mutex.c:949 at __mutex_unlock_slowpath+0x1ee/0x310 []Call Trace: []mutex_unlock+0xd/0x20 []cxl_detach_ep+0x180/0x400 [cxl_core] []devm_action_release+0x10/0x20 []devres_release_all+0xa8/0xe0 []device_unbind_cleanup+0xd/0xa0 []really_probe+0x1a6/0x3e0 Second, delete_switch_port() releases three devm actions registered against parent_port. The last of those is unregister_port() and it calls device_unregister() on the child port, which can cascade. If parent_port is now also empty the device core may unregister and free it too. So by the time delete_switch_port() returns, parent_port may be free, and the subsequent device_unlock(&parent_port->dev) operates on freed memory. The kernel log looks same as above, with a different offset in cxl_detach_ep(). Both of these issues stem from the absence of a lifetime guarantee between a child port and its parent port. Establish a lifetime rule for ports: child ports hold a reference to their parent device until release. Take the reference when the port is allocated and drop it when released. This ensures the parent is valid for the full lifetime of the child and eliminates the use after free window in cxl_detach_ep(). This is easily reproduced with a reload of cxl_acpi in QEMU with CXL devices present.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/d216a4bd138eb57cc…
https://git.kernel.org/stable/c/2c32141462045cf93…
https://git.kernel.org/stable/c/f7dc6f381a1e5f068…
https://git.kernel.org/stable/c/19d2f0b97a131198e…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2345df54249c6fb7779e2a72b427ee79ed3eaad5 , < d216a4bd138eb57cc4ae7c43b2f709e3482af7e2 (git) Affected: 2345df54249c6fb7779e2a72b427ee79ed3eaad5 , < 2c32141462045cf93d54a5146a0ba572b83533dd (git) Affected: 2345df54249c6fb7779e2a72b427ee79ed3eaad5 , < f7dc6f381a1e5f068333f1faa9265d6af1df4235 (git) Affected: 2345df54249c6fb7779e2a72b427ee79ed3eaad5 , < 19d2f0b97a131198efc2c4ca3eb7f980bba8c2b4 (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (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)

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CVE-2026-46116 (GCVE-0-2026-46116)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-07-24 14:33

Title

xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

Summary

In the Linux kernel, the following vulnerability has been resolved: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls under syzkaller load on linux-6.12.y stable (reproduced on 6.12.47, also reachable via the same code path on torvalds/master and on the ipsec tree). Nine unique signatures cluster in the xfrm_state lifecycle, the load-bearing one being: BUG: KASAN: slab-use-after-free in __hlist_del include/linux/list.h:990 [inline] BUG: KASAN: slab-use-after-free in hlist_del_rcu include/linux/rculist.h:516 [inline] BUG: KASAN: slab-use-after-free in __xfrm_state_delete net/xfrm/xfrm_state.c Write of size 8 at addr ffff8881198bcb70 by task kworker/u8:9/435 Workqueue: netns cleanup_net Call Trace: __hlist_del / hlist_del_rcu __xfrm_state_delete xfrm_state_delete xfrm_state_flush xfrm_state_fini ops_exit_list cleanup_net The other observed signatures hit the same slab object from __xfrm_state_lookup, xfrm_alloc_spi, __xfrm_state_insert and an OOB write variant of __xfrm_state_delete, all on the byseq/byspi hash chains. __xfrm_state_delete() guards its byseq and byspi unhashes with value-based predicates: if (x->km.seq) hlist_del_rcu(&x->byseq); if (x->id.spi) hlist_del_rcu(&x->byspi); while everywhere else in the file (e.g. state_cache, state_cache_input) the safer hlist_unhashed() check is used. xfrm_alloc_spi() sets x->id.spi = newspi inside xfrm_state_lock and then immediately inserts into byspi, but a path that observes x->id.spi != 0 outside of xfrm_state_lock can still skip-or-hit the byspi unhash inconsistently with whether x is actually on the list. The same holds for x->km.seq versus byseq, and the bydst/bysrc unhashes have no predicate at all, so a second __xfrm_state_delete() on the same object writes through LIST_POISON pprev. The defensive change here: - Use hlist_del_init_rcu() instead of hlist_del_rcu() on bydst, bysrc, byseq and byspi so a second deletion is a no-op rather than a write through LIST_POISON pprev. The byseq/byspi nodes are already initialised in xfrm_state_alloc(). - Test hlist_unhashed() rather than the value predicate for byseq/byspi, so the unhash decision tracks list state rather than mutable scalar fields. Empirical verification: applied this patch on top of v6.12.47, rebuilt, and re-ran the same syzkaller harness for 1h16m on a previously-crashy configuration that produced ~100 hits each of slab-use-after-free Read in xfrm_alloc_spi / Read in __xfrm_state_lookup / Write in __xfrm_state_delete. After the patch, 7.1M execs across 32 VMs at ~1550 exec/sec produced zero xfrm_state UAF/OOB hits. /proc/slabinfo confirms the xfrm_state slab is actively allocated and freed during the run (~143 KiB resident), so the fuzzer is still exercising those code paths -- they just no longer crash. Reproduction: - Linux 6.12.47 x86_64 + KASAN_GENERIC + KASAN_INLINE + KCOV - syzkaller @ 746545b8b1e4c3a128db8652b340d3df90ce61db - 32 QEMU/KVM VMs x 2 vCPU on AWS c5.metal bare metal - 9 unique signatures collected in ~9h, all within xfrm_state lifecycle

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-763 - Release of Invalid Pointer or Reference

Assigner

Linux

References

20 references

URL	Tags
https://git.kernel.org/stable/c/6b4dc3181b4bfc5f5…
https://git.kernel.org/stable/c/3943fcad7694a7d0b…
https://git.kernel.org/stable/c/2c617848ae6e4f07a…
https://git.kernel.org/stable/c/b4a53add2fa8f1b5a…
https://git.kernel.org/stable/c/26edb0a3c99f9d958…
https://git.kernel.org/stable/c/4980162de555cb838…
https://git.kernel.org/stable/c/a2e2d08fb070fab49…
https://git.kernel.org/stable/c/14acf9652e5690de3…
https://access.redhat.com/security/cve/CVE-2026-46116	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2482523	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:41235	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:41234	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:39371	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:42919	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-2026:36018	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:39179	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:39180	vendor-advisoryx_refsource_REDHAT

Impacted products

13 products

Vendor	Product	Version
Linux	Linux	Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < 6b4dc3181b4bfc5f5fc33ab33b1dc6e15759f4b6 (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < 3943fcad7694a7d0b15aeabe7d3cc2a2eb8e92e8 (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < 2c617848ae6e4f07a3e397f604208c293bbecacc (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < b4a53add2fa8f1b5aa17d4c5686c320785fab182 (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < 26edb0a3c99f9d958c212be68b21f1221614dcf0 (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < 4980162de555cb838f1a189ce7d2cbf5d2e7b050 (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < a2e2d08fb070fab4947447171f1c4e3ca5a188e5 (git) Affected: 7b4dc3600e4877178ba94c7fbf7e520421378aa6 , < 14acf9652e5690de3c7486c6db5fb8dafd0a32a3 (git)
Linux	Linux	Affected: 2.6.19 Unaffected: 0 , < 2.6.19 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 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: 0:6.12.0-211.37.1.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 7 Extended Lifecycle Support	Unaffected: 0:3.10.0-1160.156.1.rt56.1308.el7 , < * (rpm) cpe:/a:redhat:rhel_extras_rt_els:7
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:3.10.0-1160.156.1.el7 , < * (rpm) cpe:/o:redhat:rhel_els:7
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.144.1.rt7.485.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::nfv
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:4.18.0-553.144.1.el8_10 , < * (rpm) cpe:/o:redhat:enterprise_linux:8
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 9.4 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 9	cpe:/o:redhat:enterprise_linux:9

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: defensively unhash xfrm_state lists in __xfrm_state_delete\n\nKASAN reproduces a slab-use-after-free in __xfrm_state_delete()\u0027s\nhlist_del_rcu calls under syzkaller load on linux-6.12.y stable\n(reproduced on 6.12.47, also reachable via the same code path on\ntorvalds/master and on the ipsec tree). Nine unique signatures cluster\nin the xfrm_state lifecycle, the load-bearing one being:\n\n  BUG: KASAN: slab-use-after-free in __hlist_del include/linux/list.h:990 [inline]\n  BUG: KASAN: slab-use-after-free in hlist_del_rcu include/linux/rculist.h:516 [inline]\n  BUG: KASAN: slab-use-after-free in __xfrm_state_delete net/xfrm/xfrm_state.c\n  Write of size 8 at addr ffff8881198bcb70 by task kworker/u8:9/435\n\n  Workqueue: netns cleanup_net\n  Call Trace:\n   __hlist_del / hlist_del_rcu\n   __xfrm_state_delete\n   xfrm_state_delete\n   xfrm_state_flush\n   xfrm_state_fini\n   ops_exit_list\n   cleanup_net\n\nThe other observed signatures hit the same slab object from\n__xfrm_state_lookup, xfrm_alloc_spi, __xfrm_state_insert and an OOB\nwrite variant of __xfrm_state_delete, all on the byseq/byspi\nhash chains.\n\n__xfrm_state_delete() guards its byseq and byspi unhashes with\nvalue-based predicates:\n\n\tif (x-\u003ekm.seq)\n\t\thlist_del_rcu(\u0026x-\u003ebyseq);\n\tif (x-\u003eid.spi)\n\t\thlist_del_rcu(\u0026x-\u003ebyspi);\n\nwhile everywhere else in the file (e.g. state_cache, state_cache_input)\nthe safer hlist_unhashed() check is used. xfrm_alloc_spi() sets\nx-\u003eid.spi = newspi inside xfrm_state_lock and then immediately inserts\ninto byspi, but a path that observes x-\u003eid.spi != 0 outside of\nxfrm_state_lock can still skip-or-hit the byspi unhash inconsistently\nwith whether x is actually on the list. The same holds for x-\u003ekm.seq\nversus byseq, and the bydst/bysrc unhashes have no predicate at all,\nso a second __xfrm_state_delete() on the same object writes through\nLIST_POISON pprev.\n\nThe defensive change here:\n\n  - Use hlist_del_init_rcu() instead of hlist_del_rcu() on bydst,\n    bysrc, byseq and byspi so a second deletion is a no-op rather\n    than a write through LIST_POISON pprev. The byseq/byspi nodes\n    are already initialised in xfrm_state_alloc().\n  - Test hlist_unhashed() rather than the value predicate for\n    byseq/byspi, so the unhash decision tracks list state rather than\n    mutable scalar fields.\n\nEmpirical verification: applied this patch on top of v6.12.47, rebuilt,\nand re-ran the same syzkaller harness for 1h16m on a previously-crashy\nconfiguration that produced ~100 hits each of slab-use-after-free\nRead in xfrm_alloc_spi / Read in __xfrm_state_lookup / Write in\n__xfrm_state_delete. After the patch, 7.1M execs across 32 VMs at\n~1550 exec/sec produced zero xfrm_state UAF/OOB hits. /proc/slabinfo\nconfirms the xfrm_state slab is actively allocated and freed during\nthe run (~143 KiB resident), so the fuzzer is still exercising those\ncode paths -- they just no longer crash.\n\nReproduction:\n\n  - Linux 6.12.47 x86_64 + KASAN_GENERIC + KASAN_INLINE + KCOV\n  - syzkaller @ 746545b8b1e4c3a128db8652b340d3df90ce61db\n  - 32 QEMU/KVM VMs x 2 vCPU on AWS c5.metal bare metal\n  - 9 unique signatures collected in ~9h, all within xfrm_state\n    lifecycle"
        }
      ],
      "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"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T14:33:40.270Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6b4dc3181b4bfc5f5fc33ab33b1dc6e15759f4b6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3943fcad7694a7d0b15aeabe7d3cc2a2eb8e92e8"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c617848ae6e4f07a3e397f604208c293bbecacc"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4a53add2fa8f1b5aa17d4c5686c320785fab182"
        },
        {
          "url": "https://git.kernel.org/stable/c/26edb0a3c99f9d958c212be68b21f1221614dcf0"
        },
        {
          "url": "https://git.kernel.org/stable/c/4980162de555cb838f1a189ce7d2cbf5d2e7b050"
        },
        {
          "url": "https://git.kernel.org/stable/c/a2e2d08fb070fab4947447171f1c4e3ca5a188e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/14acf9652e5690de3c7486c6db5fb8dafd0a32a3"
        }
      ],
      "title": "xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46116",
    "datePublished": "2026-05-28T09:35:30.689Z",
    "dateReserved": "2026-05-13T15:03:33.098Z",
    "dateUpdated": "2026-07-24T14:33:40.270Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-46150 (GCVE-0-2026-46150)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-06-14 17:58

Title

fanotify: fix false positive on permission events

Summary

In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.

Severity

7.1 (High)


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

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a24765332e129c191…
https://git.kernel.org/stable/c/4a7611ad653785fcd…
https://git.kernel.org/stable/c/04bb66be92f48ed13…
https://git.kernel.org/stable/c/895ebbedf88318607…
https://git.kernel.org/stable/c/f130790f1acc8399f…
https://git.kernel.org/stable/c/7baa02b0ae9d17ec5…
https://git.kernel.org/stable/c/b7b24b28c8cd55844…
https://git.kernel.org/stable/c/7746e3bd4cc19b509…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < a24765332e129c1916d5a6615418b75599b8fcdc (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 4a7611ad653785fcdea5ff5f4441e2b7d05b7f11 (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 04bb66be92f48ed13c3faf1139d892df228789bc (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 895ebbedf88318607c24acc0f591c74b165e1d0a (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < f130790f1acc8399f32652846c875a251efd040f (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 7baa02b0ae9d17ec5f08836d8ea88ce1927d0678 (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < b7b24b28c8cd55844cab908f4f39dded638d5538 (git) Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 7746e3bd4cc19b5092e00d32d676e329bfcb6900 (git)
Linux	Linux	Affected: 4.12 Unaffected: 0 , < 4.12 (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)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/notify/fsnotify.c",
            "fs/notify/mark.c",
            "include/linux/fsnotify_backend.h"
          ],
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            {
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              "versionType": "git"
            },
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              "status": "affected",
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            {
              "lessThan": "895ebbedf88318607c24acc0f591c74b165e1d0a",
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            {
              "lessThan": "f130790f1acc8399f32652846c875a251efd040f",
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              "versionType": "git"
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "4.12"
            },
            {
              "lessThan": "4.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
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              "status": "unaffected",
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            },
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              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "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": "5.10.258",
                  "versionStartIncluding": "4.12",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                {
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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                {
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfanotify: fix false positive on permission events\n\nfsnotify_get_mark_safe() may return false for a mark on an unrelated group,\nwhich results in bypassing the permission check.\n\nFix by skipping over detached marks that are not in the current group."
        }
      ],
      "metrics": [
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        },
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          "url": "https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0a"
        },
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          "url": "https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040f"
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        {
          "url": "https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678"
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          "url": "https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538"
        },
        {
          "url": "https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900"
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      "title": "fanotify: fix false positive on permission events",
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    "assignerShortName": "Linux",
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CVE-2026-46215 (GCVE-0-2026-46215)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:40 – Updated: 2026-07-10 03:55

Title

drm: Set old handle to NULL before prime swap in change_handle

Summary

In the Linux kernel, the following vulnerability has been resolved: drm: Set old handle to NULL before prime swap in change_handle There was a potential race condition in change_handle. The ioctl briefly had a single object with two idr entries; a concurrent gem_close could delete the object and remove one of the handles while leaving the other one dangling, which could subsequently be dereferenced for a use-after-free. To fix this, do the same dance that gem_close itself does. (f6cd7daecff5 drm: Release driver references to handle before making it available again) First idr_replace the old handle to NULL. Later, if the prime operations are successful, actually close it. create_tail required a similar dance to avoid a similar problem. (bd46cece51a3 drm/gem: Fix race in drm_gem_handle_create_tail()) It idr_allocs the new handle with NULL, then swaps in the correct object later to avoid races. We don't need to do that here, since the only operations that could race are drm_prime, and change_handle holds the prime lock for the entire duration. v2: cleanups of error paths

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: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/672464dd53231509c…
https://git.kernel.org/stable/c/61bd96d3e5472c253…
https://git.kernel.org/stable/c/5e28b7b94408897e4…
https://github.com/0xCyberstan/CVE-2026-46215-POC	exploit

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 53096728b8910c6916ecc6c46a5abc5c678b58d9 , < 672464dd53231509c9c771110798c56d4660e19e (git) Affected: 53096728b8910c6916ecc6c46a5abc5c678b58d9 , < 61bd96d3e5472c253f9c1ab77608f0c8aaa9d025 (git) Affected: 53096728b8910c6916ecc6c46a5abc5c678b58d9 , < 5e28b7b94408897e41c63477aabc9e1db439bc8c (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.32 , ≤ 6.18.* (semver) Unaffected: 7.0.9 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-46215",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-09T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-10T03:55:46.719Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/0xCyberstan/CVE-2026-46215-POC"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/drm_gem.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "672464dd53231509c9c771110798c56d4660e19e",
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              "versionType": "git"
            },
            {
              "lessThan": "61bd96d3e5472c253f9c1ab77608f0c8aaa9d025",
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CVE-2026-52950 (GCVE-0-2026-52950)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:28 – Updated: 2026-07-22 12:08

Title

drm/xe/dma-buf: fix UAF with retry loop

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init do the alloc for us. This should make the retry safe. Reported by Sashiko. v2: Fix up the error unwind (CI) (cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)

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

References

7 references

URL	Tags
https://git.kernel.org/stable/c/39fdac6be02eb7c34…
https://git.kernel.org/stable/c/827062952ed9bdf42…
https://git.kernel.org/stable/c/155a372a1cc50fa93…
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https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:42919	vendor-advisoryx_refsource_REDHAT

Impacted products

7 products

Vendor	Product	Version
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Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.37.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
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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JSON

To clipboard

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CVE-2026-52976 (GCVE-0-2026-52976)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:28 – Updated: 2026-07-22 12:08

Title

drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl() Two error handling issues exist in xe_exec_queue_create_ioctl(): 1. When xe_hw_engine_group_add_exec_queue() fails, the error path jumps to put_exec_queue which skips xe_exec_queue_kill(). If the VM is in preempt fence mode, xe_vm_add_compute_exec_queue() has already added the queue to the VM's compute exec queue list. Skipping the kill leaves the queue on that list, leading to a dangling pointer after the queue is freed. 2. When xa_alloc() fails after xe_hw_engine_group_add_exec_queue() has succeeded, the error path does not call xe_hw_engine_group_del_exec_queue() to remove the queue from the hw engine group list. The queue is then freed while still linked into the hw engine group, causing a use-after-free. Fix both by: - Changing the xe_hw_engine_group_add_exec_queue() failure path to jump to kill_exec_queue so that xe_exec_queue_kill() properly removes the queue from the VM's compute list. - Adding a del_hw_engine_group label before kill_exec_queue for the xa_alloc() failure path, which removes the queue from the hw engine group before proceeding with the rest of the cleanup. (cherry picked from commit 37c831f401746a45d510b312b0ed7a77b1e06ec8)

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

References

8 references

URL	Tags
https://git.kernel.org/stable/c/f93b00161213a0fe9…
https://git.kernel.org/stable/c/753b149d5a433eb19…
https://git.kernel.org/stable/c/1be55646d8a203534…
https://git.kernel.org/stable/c/f3cc22d4df3ed5843…
https://access.redhat.com/security/cve/CVE-2026-52976	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2492284	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:42919	vendor-advisoryx_refsource_REDHAT

Impacted products

7 products

Vendor	Product	Version
Linux	Linux	Affected: 7970cb36966c9b9183255dc097ae0446300eebcf , < f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43 (git) Affected: 7970cb36966c9b9183255dc097ae0446300eebcf , < 753b149d5a433eb19e0c1b0eb4526a6e26120d1f (git) Affected: 7970cb36966c9b9183255dc097ae0446300eebcf , < 1be55646d8a2035343b012dcb12210db7bb8b056 (git) Affected: 7970cb36966c9b9183255dc097ae0446300eebcf , < f3cc22d4df3ed58439ea7e21daa54c3608e03b78 (git)
Linux	Linux	Affected: 6.12 Unaffected: 0 , < 6.12 (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.37.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
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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JSON

To clipboard

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CVE-2026-53009 (GCVE-0-2026-53009)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-07-22 12:08

Title

ice: fix double-free of tx_buf skb

Summary

In the Linux kernel, the following vulnerability has been resolved: ice: fix double-free of tx_buf skb If ice_tso() or ice_tx_csum() fail, the error path in ice_xmit_frame_ring() frees the skb, but the 'first' tx_buf still points to it and is marked as valid (ICE_TX_BUF_SKB). 'next_to_use' remains unchanged, so the potential problem will likely fix itself when the next packet is transmitted and the tx_buf gets overwritten. But if there is no next packet and the interface is brought down instead, ice_clean_tx_ring() -> ice_unmap_and_free_tx_buf() will find the tx_buf and free the skb for the second time. The fix is to reset the tx_buf type to ICE_TX_BUF_EMPTY in the error path, so that ice_unmap_and_free_tx_buf(). Move the initialization of 'first' up, to ensure it's already valid in case we hit the linearization error path. The bug was spotted by AI while I had it looking for something else. It also proposed an initial version of the patch. I reproduced the bug and tested the fix by adding code to inject failures, on a build with KASAN. I looked for similar bugs in related Intel drivers and did not find any.

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-416 - Use After Free

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/4c08fc2119ef0281c…
https://git.kernel.org/stable/c/1a303baa715e6b78d…
https://access.redhat.com/security/cve/CVE-2026-53009	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2492390	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:42919	vendor-advisoryx_refsource_REDHAT

Impacted products

7 products

Vendor	Product	Version
Linux	Linux	Affected: d76a60ba7afb89523c88cf2ed3a044ce4180289e , < 4c08fc2119ef0281cfa2cee007acf0a251be55f2 (git) Affected: d76a60ba7afb89523c88cf2ed3a044ce4180289e , < 1a303baa715e6b78d6a406aaf335f87ff35acfcd (git)
Linux	Linux	Affected: 4.17 Unaffected: 0 , < 4.17 (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:6.12.0-211.37.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
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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            "drivers/net/ethernet/intel/ice/ice_txrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.17"
            },
            {
              "lessThan": "4.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "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": "7.0.10",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix double-free of tx_buf skb\n\nIf ice_tso() or ice_tx_csum() fail, the error path in\nice_xmit_frame_ring() frees the skb, but the \u0027first\u0027 tx_buf still points\nto it and is marked as valid (ICE_TX_BUF_SKB).\n\u0027next_to_use\u0027 remains unchanged, so the potential problem will\nlikely fix itself when the next packet is transmitted and the tx_buf\ngets overwritten. But if there is no next packet and the interface is\nbrought down instead, ice_clean_tx_ring() -\u003e ice_unmap_and_free_tx_buf()\nwill find the tx_buf and free the skb for the second time.\n\nThe fix is to reset the tx_buf type to ICE_TX_BUF_EMPTY in the error\npath, so that ice_unmap_and_free_tx_buf().\nMove the initialization of \u0027first\u0027 up, to ensure it\u0027s already valid in\ncase we hit the linearization error path.\n\nThe bug was spotted by AI while I had it looking for something else.\nIt also proposed an initial version of the patch.\n\nI reproduced the bug and tested the fix by adding code to inject\nfailures, on a build with KASAN.\n\nI looked for similar bugs in related Intel drivers and did not find any."
        }
      ],
      "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"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-28T06:37:58.894Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4c08fc2119ef0281cfa2cee007acf0a251be55f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a303baa715e6b78d6a406aaf335f87ff35acfcd"
        }
      ],
      "title": "ice: fix double-free of tx_buf skb",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53009",
    "datePublished": "2026-06-24T16:29:20.332Z",
    "dateReserved": "2026-06-09T07:44:35.378Z",
    "dateUpdated": "2026-07-22T12:08:49.558Z",
    "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.

Action not permitted

alsa-2026:42919

Vulnerability from osv_almalinux

CVE-2025-71113 (GCVE-0-2025-71113)

CVE-2025-71147 (GCVE-0-2025-71147)

CVE-2026-23168 (GCVE-0-2026-23168)

CVE-2026-31530 (GCVE-0-2026-31530)

CVE-2026-46116 (GCVE-0-2026-46116)

CVE-2026-46150 (GCVE-0-2026-46150)

CVE-2026-46215 (GCVE-0-2026-46215)

CVE-2026-52950 (GCVE-0-2026-52950)

CVE-2026-52976 (GCVE-0-2026-52976)

CVE-2026-53009 (GCVE-0-2026-53009)

Tags

Sightings

Nomenclature