CVE-2026-93176

high

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix dangling pointer in plane reset function amdgpu_dm_plane_drm_plane_reset() frees the old state before allocating a new one. If kzalloc() fails, the function returns without updating the state pointer, leaving a dangling pointer to already freed memory. Fix this by allocating the new state first. On allocation failure, the old state remains untouched and the function safely returns. Found by Linux Verification Center (linuxtesting.org) with SVACE. [adjust for movement around current amd-staging-drm-next]

References

https://git.kernel.org/stable/c/cda8af27b787d79eadc4eb8109d9f2e856dadac2

https://git.kernel.org/stable/c/98cad4bd1443975d972f4c7f705980da03722a22

https://git.kernel.org/stable/c/80c0f51aced43d6eaf72f95a2833b0a77cf7880d

https://git.kernel.org/stable/c/3d8391d3149a1aeb93505a4f9fb9ed8364882c42

https://git.kernel.org/stable/c/0999a267bdc13648b6b0db893e7eabe30bc13e7c

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-82284

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-10-21

Risk Information

CVSS v2

Base Score: 6

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7

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

Severity: High

EPSS

EPSS: 0.00155