drm/amdgpu/vcn: set no_user_fence for VCN v2.5 enc/dec rings
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v2.5 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit efc9dd5590894109bce9a0bfe1fa5592dd6b20b1)
CVE-2026-63855
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-2026-63855
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": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
"lessThan": "2c6fb056567efb49f8674108b86088a1cfaa86d0",
"versionType": "git"
},
{
"status": "affected",
"version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
"lessThan": "8f0ea4524dc71c6c9ec97f2711f46e12f624140f",
"versionType": "git"
},
{
"status": "affected",
"version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
"lessThan": "602d4c5872b25ddd4d82fb2025efb9a05b187bb3",
"versionType": "git"
},
{
"status": "affected",
"version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
"lessThan": "5a3c6f76cab164a5d803084908d7050f649ab7f9",
"versionType": "git"
},
{
"status": "affected",
"version": "28c17d72072b7ce5cc13a527dcbfc045cc995e7d",
"lessThan": "4f317863a3ab212a027d8c8c3cc3af4e3fb95704",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.141",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.91",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.33",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-63855
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40859 · Revision 1
- Added to Heist Feed
- Publisher date