Use-after-free in Linux kernel ath ath12k driver

1) Use-after-free

EUVDB-ID: #VU102073

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-56541

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the ath12k_dp_cc_cleanup() function in drivers/net/wireless/ath/ath12k/dp.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.11 - 6.11.10

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.11:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.6:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.11.9:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/35be5018a2a4d1b07bdfcf957c81121d22d16355
https://git.kernel.org/stable/c/bdb281103373fd80eb5c91cede1e115ba270b4e9
https://git.kernel.org/stable/c/e5e15c8b42923bfb6c84d3d906a9965d9a0f111d
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.11

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.