Race condition in Linux kernel display dc driver

1) Race condition

EUVDB-ID: #VU91464

Risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-36024

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the dc_wake_and_execute_dmub_cmd_list() and dc_wake_and_execute_gpint() functions in drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/2aac387445610d6dfd681f5214388e86f5677ef7
http://git.kernel.org/stable/c/6226a5aa77370329e01ee8abe50a95e60618ce97

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.