Input validation error in Linux kernel display amdgpu_dm driver

1) Input validation error

EUVDB-ID: #VU97565

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46773

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 dm_update_mst_vcpi_slots_for_dsc() function in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.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

External links

http://git.kernel.org/stable/c/20e7164c52d9bfbb9d9862b833fa989624a61345
http://git.kernel.org/stable/c/dfafee0a7b51c7c9612edd2d991401294964d02f
http://git.kernel.org/stable/c/11f997143c67680d6e40a13363618380cd57a414
http://git.kernel.org/stable/c/116a678f3a9abc24f5c9d2525b7393d18d9eb58e

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.