drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/mes: Fix hung_queue_db_array loop limit for multi-XCC The loop iterated only AMDGPU_MAX_MES_PIPES times, leaving entries uninitialized for multi-XCC GPUs. This causes null pointer dereferences when accessing arrays indexed by XCC ID >= 2. Extend the loop to cover all XCCs (AMDGPU_MAX_MES_PIPES * num_xcc), matching other per-XCC arrays.
CVE-2026-93139
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-93139
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "a132fc9bc2f8b394a2f75947a0e1f5c22482a94c",
"lessThan": "7ff668cfc3960ed5b944ac35129f18a15ea08b74",
"versionType": "git"
},
{
"status": "affected",
"version": "a132fc9bc2f8b394a2f75947a0e1f5c22482a94c",
"lessThan": "2c256086a363f01f9840a57949506eccf5c990a6",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "7.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93139
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37861 · Revision 1
- Added to Heist Feed
- Publisher date