Input validation error in Linux kernel dc dml2 driver

1) Input validation error

EUVDB-ID: #VU99040

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-2024-50004

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation within the build_unoptimized_policy_settings() function in drivers/gpu/drm/amd/display/dc/dml2/dml2_policy.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/945dc25eda88b5d6e30c9686dc619ab981c22d0e
https://git.kernel.org/stable/c/4010efc8516899981cc3b57be2d4a2d5d9e50228
https://git.kernel.org/stable/c/0d5e5e8a0aa49ea2163abf128da3b509a6c58286

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.