Memory leak in Linux kernel ath ath12k driver

1) Memory leak

EUVDB-ID: #VU94208

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-2024-40979

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 ath12k_qmi_free_target_mem_chunk(), ath12k_qmi_alloc_target_mem_chunk() and ath12k_qmi_m3_load() functions in drivers/net/wireless/ath/ath12k/qmi.c, within the ath12k_core_reset() function in drivers/net/wireless/ath/ath12k/core.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/bb50a4e711ff95348ad53641acb1306d89eb4c3a
http://git.kernel.org/stable/c/303c017821d88ebad887814114d4e5966d320b28

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.