CVE-2026-46311 is a vulnerability in Linux Kernel
Published on June 8, 2026
drm/amdgpu/userq: fix access to stale wptr mapping
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/userq: fix access to stale wptr mapping
Use drm_exec to take both locks i.e vm root bo and
wptr_obj bo to access the mapping data properly.
This fixes the security issue of unmap the wptr_obj while
a queue creation is in progress and passing other
bo at same address.
(cherry picked from commit 1fc6c8ab45dbee096469c08c13f6099d57a52d6c)
Products Associated with CVE-2026-46311
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 336a9186f3a4b65bbd865d93936605ac8a1a3991 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 6da7b1242da4455b11c24ce667d1cab1a348c8ea is affected.
- Before 7.0.9 is affected.
- Version 7.0.9, <= 7.0.* is unaffected.
- Version 7.1-rc3, <= * is unaffected.