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TI-2025-26038 Aliases CVE-2025-38703GHSA-q5gc-8mmj-m6hh

drm/xe: Make dma-fences compliant with the safe access rules

Priority LOW 33CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 20 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Make dma-fences compliant with the safe access rules Xe can free some of the data pointed to by the dma-fences it exports. Most notably the timeline name can get freed if userspace closes the associated submit queue. At the same time the fence could have been exported to a third party (for example a sync_fence fd) which will then cause an use- after-free on subsequent access. To make this safe we need to make the driver compliant with the newly documented dma-fence rules. Driver has to ensure a RCU grace period between signalling a fence and freeing any data pointed to by said fence. For the timeline name we simply make the queue be freed via kfree_rcu and for the shared lock associated with multiple queues we add a RCU grace period before freeing the per GT structure holding the lock.

Why it matters now

EPSS 0.00176 7th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.12.43, 6.15.11, 6.16.2 +1Red Hat: 4 advisoriesRed Hat: 20 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.8 and later6.12.43, 6.15.11, 6.16.2, 6.17Patch availableCNA
  • Linux VendorLinux Affected 6.8 and later Fixed in 6.12.43, 6.15.11, 6.16.2, 6.17 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.8 to before 6.12.43; 6.13 to before 6.15.11; 6.16 to before 6.16.2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.8 to before 6.12.43; 6.13 to before 6.15.11; 6.16 to before 6.16.2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.12.43, 6.15.11, 6.16.2, 6.17

Red Hat 4 advisories

  • RHSA-2026:4111 Released 2026-03-09 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.63.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.63.1.el10_0, kernel-64k-devel-6.12.0-55.63.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.63.1.el10_0, kernel-64k-6.12.0-55.63.1.el10_0, kernel-64k-core-6.12.0-55.63.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.63.1.el10_0, libperf-6.12.0-55.63.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.63.1.el10_0, kernel-rt-64k-6.12.0-55.63.1.el10_0, kernel-rt-64k-core-6.12.0-55.63.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.63.1.el10_0, kernel-rt-core-6.12.0-55.63.1.el10_0, kernel-rt-debug-6.12.0-55.63.1.el10_0 +11
  • RHSA-2026:4012 Released 2026-03-09 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-124.43.1.el10_1, kernel-64k-debug-devel-matched-6.12.0-124.43.1.el10_1, kernel-64k-devel-6.12.0-124.43.1.el10_1 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-124.43.1.el10_1, kernel-64k-6.12.0-124.43.1.el10_1, kernel-64k-core-6.12.0-124.43.1.el10_1 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-124.43.1.el10_1, libperf-6.12.0-124.43.1.el10_1
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-124.43.1.el10_1, kernel-rt-64k-6.12.0-124.43.1.el10_1, kernel-rt-64k-core-6.12.0-124.43.1.el10_1 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-124.43.1.el10_1, kernel-rt-core-6.12.0-124.43.1.el10_1, kernel-rt-debug-6.12.0-124.43.1.el10_1 +9
  • RHSA-2026:4011 Released 2026-03-09 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.96.1.el9_6, libperf-5.14.0-570.96.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.96.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.96.1.el9_6, kernel-64k-devel-5.14.0-570.96.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.96.1.el9_6, kernel-64k-5.14.0-570.96.1.el9_6, kernel-64k-core-5.14.0-570.96.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.96.1.el9_6, kernel-rt-64k-5.14.0-570.96.1.el9_6, kernel-rt-64k-core-5.14.0-570.96.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.96.1.el9_6, kernel-rt-core-5.14.0-570.96.1.el9_6, kernel-rt-debug-5.14.0-570.96.1.el9_6 +11
Show 1 more Red Hat advisories
  • RHSA-2026:0793 Released 2026-01-19 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.24.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.24.1.el9_7, kernel-64k-devel-5.14.0-611.24.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.24.1.el9_7, kernel-64k-5.14.0-611.24.1.el9_7, kernel-64k-core-5.14.0-611.24.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.24.1.el9_7, libperf-5.14.0-611.24.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.24.1.el9_7, kernel-rt-64k-5.14.0-611.24.1.el9_7, kernel-rt-64k-core-5.14.0-611.24.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.24.1.el9_7, kernel-rt-core-5.14.0-611.24.1.el9_7, kernel-rt-debug-5.14.0-611.24.1.el9_7 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:4012
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:0793
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:4111
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:4012
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:0793
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:4111
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:4012
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:0793
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:4111
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:4012
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:0793
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:4111
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:4012
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:0793
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:4111
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:4011
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-38703
  2. 2026-10-03 Alias added: GHSA-q5gc-8mmj-m6hh

References

Patch 4

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences