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CVE-2026-43318: drm/amdgpu: fix sync handling in amdgpu_dma_buf_move_notify

highCVSS 7.1CVE-2026-43318

CSIRTS triage

vendor: Linuxproduct: Linux KernelMemory corruption
What
Improper synchronization handling in the amdgpu DMA buffer move notification can cause memory corruption.
Who is affected
Systems with AMD GPUs using the amdgpu driver in affected kernel versions.
Urgency
High severity with memory corruption risk; timing-dependent exploitation potential warrants prompt patching.
Action
Update to a patched Linux kernel version with corrected sync handling in amdgpu_dma_buf_move_notify.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.1
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43318

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-43318coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for drm/amdgpu

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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