CVE-2025-21995

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]
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
LinuxCNA
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
VendorProductVersion
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.85
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.21
linuxlinux_kernel
6.13 ≤
𝑥
< 6.13.9
linuxlinux_kernel
6.14:rc1
linuxlinux_kernel
6.14:rc2
linuxlinux_kernel
6.14:rc3
linuxlinux_kernel
6.14:rc4
linuxlinux_kernel
6.14:rc5
linuxlinux_kernel
6.14:rc6
linuxlinux_kernel
6.14:rc7
𝑥
= Vulnerable software versions