Out-of-bounds read in Linux kernel powerplay hwmgr driver

1) Out-of-bounds read

EUVDB-ID: #VU97512

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-2024-46731

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to an out-of-bounds read error within the atomctrl_retrieve_ac_timing() function in drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.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/38e32a0d837443c91c4b615a067b976cfb925376
http://git.kernel.org/stable/c/3317966efcdc5101e93db21514b68917e7eb34ea
http://git.kernel.org/stable/c/20c6373a6be93039f9d66029bb1e21038a060be1
http://git.kernel.org/stable/c/f1e261ced9bcad772a45a2fcdf413c3490e87299
http://git.kernel.org/stable/c/d83fb9f9f63e9a120bf405b078f829f0b2e58934
http://git.kernel.org/stable/c/12c6967428a099bbba9dfd247bb4322a984fcc0b

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.