CVE-2025-37951

MEDIUM

Linux Kernel 4.18-6.1.139 6.2.0-6.6.91 6.7.0-6.12.29 6.13.0-6.14.7 - Use-After-Free in DRM V3D Job Timeout Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Add job to pending list if the reset was skipped When a CL/CSD job times out, we check if the GPU has made any progress since the last timeout. If so, instead of resetting the hardware, we skip the reset and let the timer get rearmed. This gives long-running jobs a chance to complete. However, when `timedout_job()` is called, the job in question is removed from the pending list, which means it won't be automatically freed through `free_job()`. Consequently, when we skip the reset and keep the job running, the job won't be freed when it finally completes. This situation leads to a memory leak, as exposed in [1] and [2]. Similarly to commit 704d3d60fec4 ("drm/etnaviv: don't block scheduler when GPU is still active"), this patch ensures the job is put back on the pending list when extending the timeout.

Scores

CVSS v3 5.5
EPSS 0.0015
EPSS Percentile 4.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (19)
debian/debian_linux 11.0
linux/Kernel 4.18.0 - 6.1.139linux
linux/Kernel 6.13.0 - 6.14.7linux
linux/Kernel 6.2.0 - 6.6.91linux
linux/Kernel 6.7.0 - 6.12.29linux
Linux/Linux < 4.18
Linux/Linux 4.18
Linux/Linux 57692c94dcbe99a1e0444409a3da13fb3443562c - 12125f7d9c15e6d8ac91d10373b2db2f17dcf767
Linux/Linux 57692c94dcbe99a1e0444409a3da13fb3443562c - 35e4079bf1a2570abffce6ababa631afcf8ea0e5
Linux/Linux 57692c94dcbe99a1e0444409a3da13fb3443562c - 422a8b10ba42097a704d6909ada2956f880246f2
... and 9 more
Published May 20, 2025
Tracked Since Feb 18, 2026