Infinite loop in Linux kernel dc bios driver

1) Infinite loop

EUVDB-ID: #VU91415

Risk: Low

CVSSv3.1: 4.8 [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-2024-26767

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop within the link_validate_dpia_bandwidth() function in drivers/gpu/drm/amd/display/dc/link/link_validation.c, within the get_firmware_info_v3_2(), get_integrated_info_v11(), get_integrated_info_v2_1() and get_integrated_info_v2_2() functions in drivers/gpu/drm/amd/display/dc/bios/bios_parser2.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

External links

http://git.kernel.org/stable/c/71783d1ff65204d69207fd156d4b2eb1d3882375
http://git.kernel.org/stable/c/beea9ab9080cd2ef46296070bb327af066ee09d7
http://git.kernel.org/stable/c/0484e05d048b66d01d1f3c1d2306010bb57d8738

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.