Memory leak in Linux kernel drm scheduler driver

1) Memory leak

EUVDB-ID: #VU106952

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21995

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the drm_sched_entity_kill() function in drivers/gpu/drm/scheduler/sched_entity.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.