Improper locking in Linux kernel tracefs

1) Improper locking

EUVDB-ID: #VU96863

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-2024-44959

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the tracefs_alloc_inode(), tracefs_free_inode() and tracefs_drop_inode() functions in fs/tracefs/inode.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/726f4c241e17be75a9cf6870d80cd7479dc89e8f
https://git.kernel.org/stable/c/061da60716ce0cde99f62f31937b81e1c03acef6
https://git.kernel.org/stable/c/0b6743bd60a56a701070b89fb80c327a44b7b3e2

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.