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Vulnerability record · CVE-2026-46311 · published 8 June 2026

CVE-2026-46311: Linux kernel vulnerability

Linux · Linux Kernel

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)

7.8 CVSS 3.1 High EPSS 0.17% · top 94.9%
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
23 Jul 2026Last modified by NVD

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)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/336a9186f3a4b65bbd865d93936605ac8a1a3991 Patch
https://git.kernel.org/stable/c/6da7b1242da4455b11c24ce667d1cab1a348c8ea Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46311), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.