CVE-2026-93139: Linux kernel · drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to 7ff668cfc3960ed5b944ac35129f18a15ea08b74 or 2c256086a363f01f9840a57949506eccf5c990a6 when convenient.
Data as of 26 Oct 2026, 14:33 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7ff668cfc3960ed5b944ac35129f18a15ea08b74, 2c256086a363f01f9840a57949506eccf5c990a6
Exploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 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 Linux kernel to 7ff668cfc3960ed5b944ac35129f18a15ea08b74 or 2c256086a363f01f9840a57949506eccf5c990a6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel commits identified by hashes 7ff668cfc3960ed5b944ac35129f18a15ea08b74 and 2c256086a363f01f9840a57949506eccf5c990a6. Users and administrators should update to a Linux kernel version that includes these commits to remediate the vulnerability.
Description
A vulnerability in the Linux kernel's AMDGPU driver was fixed by correcting the loop limit in the hung_queue_db_array for multi-XCC GPUs. The original loop only covered AMDGPU_MAX_MES_PIPES iterations, leaving some entries uninitialized for GPUs with multiple XCCs. This could cause null pointer dereferences when accessing arrays indexed by XCC ID 2 or higher. The fix extends the loop to cover all XCCs, matching other per-XCC arrays.