CVE-2026-43195: Linux kernel · drm/amdgpu: validate user queue size constraints
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in cf2a37be899dc1b01f53bf1d0157330eaf3e3f55 : update Linux kernel when convenient.
Data as of 6 Nov 2026, 15:50 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-06.
- Patch
- Available – fixed in cf2a37be899dc1b01f53bf1d0157330eaf3e3f55, 8079b87c02e531cc91601f72ea8336dd2262fdf1, 9f6cc309cd15922fe58cab2dfa1b5993ad31dec7
Exploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.
What to do
Upgrade Linux kernel to cf2a37be899dc1b01f53bf1d0157330eaf3e3f55, 8079b87c02e531cc91601f72ea8336dd2262fdf1 or 9f6cc309cd15922fe58cab2dfa1b5993ad31dec7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
The vulnerability has been fixed in the Linux kernel via patches that add validation of user queue sizes. Users should update to a Linux kernel version that includes the fixes identified by the provided commit hashes. No additional mitigation is required beyond applying the official fix.
Description
A vulnerability in the Linux kernel's AMDGPU driver was addressed by adding validation for user queue sizes. The fix ensures that queue sizes are powers of two and at least the size of AMDGPU_GPU_PAGE_SIZE, preventing invalid configurations that could cause GPU faults or unexpected behavior.