CVE-2025-21995 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/sched: Fix fence reference count leak

The last_scheduled fence leaks when an entity is being killed and adding the cleanup callback fails.

Decrement the reference count of prev when dma_fence_add_callback() fails ensuring proper balance.

[phasta: add git tag info for stable kernel]

Reference

https://git.kernel.org/stable/c/1135a9431160575466ea9ac37ebd756ecbe35fff https://git.kernel.org/stable/c/35399c84dcedd6d31448fb9e1336ef52673f2882 https://git.kernel.org/stable/c/a952f1ab696873be124e31ce5ef964d36bce817f https://git.kernel.org/stable/c/c76bd3c99293834de7d1dca5de536616d5655e38