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TI-2026-38037 Aliases CVE-2026-52950GHSA-mp35-p2hc-v59q

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

Priority LOW 35CWE-825Published · 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
Fixed

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/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)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00178 7th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 6.18.33, 7.0.10, 7.1Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.18 and later6.18.33, 7.0.10, 7.1Patch availableCNA
  • Linux VendorLinux Affected 6.18 and later Fixed in 6.18.33, 7.0.10, 7.1 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.18 to before 6.18.33; 6.19 to before 7.0.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*7.1 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*7.1 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*7.1 rc3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.18 to before 6.18.33; 6.19 to before 7.0.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* Versions 7.1 rc3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.18.33, 7.0.10, 7.1

Red Hat 2 advisories

  • RHSA-2026:45192 Released 2026-07-24 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.30.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.30.1.el9_8, kernel-64k-devel-5.14.0-687.30.1.el9_8 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.30.1.el9_8, kernel-64k-5.14.0-687.30.1.el9_8, kernel-64k-core-5.14.0-687.30.1.el9_8 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.30.1.el9_8, libperf-5.14.0-687.30.1.el9_8
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.30.1.el9_8, kernel-rt-64k-5.14.0-687.30.1.el9_8, kernel-rt-64k-core-5.14.0-687.30.1.el9_8 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.30.1.el9_8, kernel-rt-core-5.14.0-687.30.1.el9_8, kernel-rt-debug-5.14.0-687.30.1.el9_8 +9
  • RHSA-2026:42919 Released 2026-07-21 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.37.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.37.1.el10_2, kernel-64k-devel-6.12.0-211.37.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.37.1.el10_2, kernel-64k-6.12.0-211.37.1.el10_2, kernel-64k-core-6.12.0-211.37.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.37.1.el10_2, libperf-6.12.0-211.37.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.37.1.el10_2, kernel-rt-64k-6.12.0-211.37.1.el10_2, kernel-rt-64k-core-6.12.0-211.37.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.37.1.el10_2, kernel-rt-core-6.12.0-211.37.1.el10_2, kernel-rt-debug-6.12.0-211.37.1.el10_2 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:45192
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:45192
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:45192
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:45192
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:45192
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-52950
  2. 2026-10-03 Alias added: GHSA-mp35-p2hc-v59q
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-19 Weakness changed · CISA ADP
  5. 2026-10-29 Affected versions changed · Red Hat

References

Patch 3

Advisory 3

  • 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