drm/amd/display: Fix dangling pointer in plane reset function
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix dangling pointer in plane reset function amdgpu_dm_plane_drm_plane_reset() frees the old state before allocating a new one. If kzalloc() fails, the function returns without updating the state pointer, leaving a dangling pointer to already freed memory. Fix this by allocating the new state first. On allocation failure, the old state remains untouched and the function safely returns. Found by Linux Verification Center (linuxtesting.org) with SVACE. [adjust for movement around current amd-staging-drm-next]
CVE-2026-93176
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-2026-93176
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": "5d945cbcd4b16a29d6470a80dfb19738f9a4319f",
"lessThan": "cda8af27b787d79eadc4eb8109d9f2e856dadac2",
"versionType": "git"
},
{
"status": "affected",
"version": "5d945cbcd4b16a29d6470a80dfb19738f9a4319f",
"lessThan": "0999a267bdc13648b6b0db893e7eabe30bc13e7c",
"versionType": "git"
},
{
"status": "affected",
"version": "5d945cbcd4b16a29d6470a80dfb19738f9a4319f",
"lessThan": "3d8391d3149a1aeb93505a4f9fb9ed8364882c42",
"versionType": "git"
},
{
"status": "affected",
"version": "5d945cbcd4b16a29d6470a80dfb19738f9a4319f",
"lessThan": "80c0f51aced43d6eaf72f95a2833b0a77cf7880d",
"versionType": "git"
},
{
"status": "affected",
"version": "5d945cbcd4b16a29d6470a80dfb19738f9a4319f",
"lessThan": "98cad4bd1443975d972f4c7f705980da03722a22",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"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/display/amdgpu_dm/amdgpu_dm_plane.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93176
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #48725 · Revision 1
- Added to Heist Feed
- Publisher date