CVE-2026-43396

MEDIUMNVD 5.5
5.5

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)

CVSS v3
5.5
EG Score
0.0(none)
EPSS
2.3%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 21, 2026

References (3)

Frequently asked(5)

What is CVE-2026-43396?
CVE-2026-43396 is a medium vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Fix user fence leak on alloc failure When dmafencechain_alloc() fails, properly release the user fence reference to prevent a memory leak. (cherry picked from commit a5d5634cde48a9fcd68c8504aa07f89f175074a0)
When was CVE-2026-43396 disclosed?
CVE-2026-43396 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43396 actively exploited?
CVE-2026-43396 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43396?
CVE-2026-43396 has a CVSS v3 base score of 5.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.
How do I remediate CVE-2026-43396?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43396, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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