CVE-2026-99090: Linux kernel · drm/amdgpu: serialize vblank counter reads against GPU reset
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f4a0a1ce147d1a6e428d7cb5e3b99fd695139fc7 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 17:30 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
- Patch
- Available – fixed in f4a0a1ce147d1a6e428d7cb5e3b99fd695139fc7, 037796d9ca1da97978deaefd88ca5649f6cb69f5, 11b6193c8841a052b7907006ffb1e02468b1448e +6
Exploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
AI-suggested
A fix is available in Linux kernel versions 6.6.160, 6.12.113, 6.18.57, and 7.2.11 and later. Users should upgrade to these or later versions to resolve the issue. No additional mitigation is required as the patch safely serializes hardware access during GPU reset.
Description
CVE-2026-99090 is a vulnerability in the Linux kernel's AMDGPU driver where vblank counter reads are not properly serialized against GPU resets. This can cause unsafe hardware access during GPU recovery, triggering kernel warnings and tainting the kernel. The issue is fixed by acquiring a semaphore before hardware access or returning a cached software count if reset is in progress.
References
- git.kernel.org/stable/c/037796d9ca1da97978deaefd88ca5649f6cb69f5 (opens in a new tab)
- git.kernel.org/stable/c/11b6193c8841a052b7907006ffb1e02468b1448e (opens in a new tab)
- git.kernel.org/stable/c/8d6f773d7479034a574ecc3b585bcd07d46b4824 (opens in a new tab)
- git.kernel.org/stable/c/f4a0a1ce147d1a6e428d7cb5e3b99fd695139fc7 (opens in a new tab)
- git.kernel.org/stable/c/1a6023edfbb5673f55fab6348f135fb3b1428ea5 (opens in a new tab)