Improper locking in Linux kernel drm panthor driver

1) Improper locking

EUVDB-ID: #VU100124

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-2024-50174

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the panthor_group_destroy(), panthor_group_get_state() and panthor_job_create() functions in drivers/gpu/drm/panthor/panthor_sched.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/8a585d553c11965332d7a2d74e79ef92a42bfc87
https://git.kernel.org/stable/c/44742138d151c3a945460ae7beff8ae45ac0bf58
https://git.kernel.org/stable/c/cac075706f298948898b1f63e81709df42afa75d

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.