CVE-2025-40191

medium

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kfd process ref leaking when userptr unmapping kfd_lookup_process_by_pid hold the kfd process reference to ensure it doesn't get destroyed while sending the segfault event to user space. Calling kfd_lookup_process_by_pid as function parameter leaks the kfd process refcount and miss the NULL pointer check if app process is already destroyed.

References

https://git.kernel.org/stable/c/60f6112fc9b3ba0eae519f10702c0c13bab45742

https://git.kernel.org/stable/c/58e6fc2fb94f0f409447e5d46cf6a417b6397fbc

Details

Source: Mitre, NVD

Published: 2025-11-12

Updated: 2025-11-14

Risk Information

CVSS v2

Base Score: 7.2

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

Severity: High

CVSS v3

Base Score: 6.6

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

Severity: Medium

EPSS

EPSS: 0.00018