drm/amdgpu: prevent immediate PASID reuse case
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: prevent immediate PASID reuse case PASID resue could cause interrupt issue when process immediately runs into hw state left by previous process exited with the same PASID, it's possible that page faults are still pending in the IH ring buffer when the process exits and frees up its PASID. To prevent the case, it uses idr cyclic allocator same as kernel pid's. (cherry picked from commit 8f1de51f49be692de137c8525106e0fce2d1912d)
CVE-2026-31462
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-2026-31462
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": "02208441cc3a5110191996bb129db39ff10e7395",
"lessThan": "f69491478e3de0e3c6aac2ee89b3cda3f2471301",
"versionType": "git"
},
{
"status": "affected",
"version": "02208441cc3a5110191996bb129db39ff10e7395",
"lessThan": "c0b3882836de8ac991b626823966f385555bbcff",
"versionType": "git"
},
{
"status": "affected",
"version": "02208441cc3a5110191996bb129db39ff10e7395",
"lessThan": "51ccaf0e30c303149244c34820def83d74c86288",
"versionType": "git"
},
{
"status": "affected",
"version": "02208441cc3a5110191996bb129db39ff10e7395",
"lessThan": "9e5ebfe99b223bb0eb9c50a125c9c02f4ef4c71b",
"versionType": "git"
},
{
"status": "affected",
"version": "02208441cc3a5110191996bb129db39ff10e7395",
"lessThan": "14b81abe7bdc25f8097906fc2f91276ffedb2d26",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c",
"drivers/gpu/drm/amd/amdgpu/amdgpu_ids.h",
"drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.80",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.21",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.11",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c",
"drivers/gpu/drm/amd/amdgpu/amdgpu_ids.h",
"drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31462
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46127 · Revision 1
- Added to Heist Feed
- Publisher date