CVE-2026-46311drm/amdgpu/userq: fix access to stale wptr mapping
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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)
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 5fb2f7fc21a3668e5794cc0d153641b9719713e1 builds before 2da62dbb4169e758c0b1a9378b39a373bf4fb111; from 5fb2f7fc21a3668e5794cc0d153641b9719713e1 before 336a9186f3a4b65bbd865d93936605ac8a1a3991; from 5fb2f7fc21a3668e5794cc0d153641b9719713e1 before 6da7b1242da4455b11c24ce667d1cab1a348c8ea | CNA record |
linux linux_kernel linux:linux_kernel | from 6.16 before 7.0.9; 7.1; 7.1 | NVD |
References
- https://git.kernel.org/stable/c/2da62dbb4169e758c0b1a9378b39a373bf4fb111
- https://git.kernel.org/stable/c/336a9186f3a4b65bbd865d93936605ac8a1a3991patch
- https://git.kernel.org/stable/c/6da7b1242da4455b11c24ce667d1cab1a348c8eapatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.