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CVE-2026-43396

drm/xe/sync: Fix user fence leak on alloc failure

MEDIUM
5.5
CVSS Score
Published: May 8, 2026 at 02:21 PM UTC
Updated: June 17, 2026 at 10:49 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Fix user fence leak on alloc failure When dma_fence_chain_alloc() fails, properly release the user fence reference to prevent a memory leak. (cherry picked from commit a5d5634cde48a9fcd68c8504aa07f89f175074a0)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.18 ≤ v < 6.18.206.18 ≤ v < 6.19.96.18 ≤ v < 7.06.18.1 ≤ v < 6.18.206.19 ≤ v < 6.19.96.186.18 rc56.18 rc66.18 rc77.0 rc1995c2fc39b0f998d40f5d276f67ae22fc1c37c3
Vendor states this is fixed in 05edc78eb4699e8e000a62aaa8dace50a17e19e3 (fixed)
Vendor states this is fixed in 0879c3f04f67e2a1677c25dcc24669ce21eb6a6c (fixed)
Vendor states this is fixed in f8f90b33934b307f6e4599b9fae38aa1ee5441a7 (fixed)
Vendor states this is fixed in 6.18 (unaffected)
Vendor states this is fixed in 6.18.20 (unaffected)
Vendor states this is fixed in 6.19.9 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

References (3)

Patch
Source: cverecord
https://git.kernel.org/stable/c/05edc78eb4699e8e000a62aaa8dace50a17e19e3
Patch
Source: cverecord
https://git.kernel.org/stable/c/f8f90b33934b307f6e4599b9fae38aa1ee5441a7
Patch
Source: cverecord
https://git.kernel.org/stable/c/0879c3f04f67e2a1677c25dcc24669ce21eb6a6c

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

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