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CVE-2026-43298: drm/amdgpu: Skip vcn poison irq release on VF

highCVSS 7.8CVE-2026-43298

CSIRTS triage

vendor: Linuxproduct: Linux kernelMemory corruption
What
The amdgpu driver skips poison IRQ release on virtual functions (VF), leading to improper resource cleanup and potential memory corruption.
Who is affected
Systems using AMD GPU with virtual function configurations.
Urgency
High severity (CVSS 7.8); improper IRQ handling can lead to resource leaks or corruption.
Action
Apply kernel patch ensuring proper VCN poison IRQ release for VF configurations.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.8
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43298

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-2026-43298coverage & exploitation statusNVD · CVE.org

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