Memory leak in Linux kernel lib

1) Memory leak

EUVDB-ID: #VU100157

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-2024-50212

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 codetag_unload_module() function in lib/codetag.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.11 - 6.11.6

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:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/24211fb49c9ac1b576470b7e393a5a0b50af2707
https://git.kernel.org/stable/c/dc783ba4b9df3fb3e76e968b2cbeb9960069263c
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12

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.