drm/amdgpu/userq: fix access to stale wptr mapping (Linux Linux)

CVE-2026-46311
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.10 % · percentile 1 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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)

Weaknesses (CWE)

  • CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 5fb2f7fc21a3668e5794cc0d153641b9719713e1 < 2da62dbb4169e758c0b1a9378b39a373bf4fb111 ; affected 5fb2f7fc21a3668e5794cc0d153641b9719713e1 < 336a9186f3a4b65bbd865d93936605ac8a1a3991 ; affected 5fb2f7fc21a3668e5794cc0d153641b9719713e1 < 6da7b1242da4455b11c24ce667d1cab1a348c8ea
Linux · Linuxaffected 6.16 ; unaffected 0 < 6.16 ; unaffected 6.18.57 ≤ 6.18.* ; unaffected 7.0.9 ≤ 7.0.* ; unaffected 7.1 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD