Memory leak in Linux kernel display amdgpu_dm driver

1) Memory leak

EUVDB-ID: #VU102001

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-2024-56542

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the dm_helpers_free_gpu_mem() function in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c, within the dm_allocate_gpu_mem(), dm_dmub_get_vbios_bounding_box() and dm_sw_fini() functions 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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/5860c637513036a6ffc130950ea98676b591b47c
https://git.kernel.org/stable/c/d4f36e5fd800de7db74c1c4e62baf24a091a5ff6
https://git.kernel.org/stable/c/e51cbe40b77a32e8698ad8b9582e5b4fce6da364

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.