CVE-2026-31462
drm/amdgpu: prevent immediate PASID reuse case
Summary
drm/amdgpu: prevent immediate PASID reuse case
Original description
The description as published by the source.
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)
Affected packages
Linux
Kernel
[{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"6.12.80"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.21"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.11"}]}]
Fix status by distribution
Fixed packages published by each distribution for this CVE
- BellSoft Alpaquita BELL-CVE-2026-31462 linux-lts
- Debian DEBIAN-CVE-2026-31462 linux
- Ubuntu UBUNTU-CVE-2026-31462 linux
References
- advisory github.com
- advisory nvd.nist.gov
- package git.kernel.org
- web git.kernel.org
- web git.kernel.org
- web git.kernel.org
- web git.kernel.org