#VU96863 Improper locking in Linux kernel - CVE-2024-44959

Vulnerability identifier: #VU96863

Vulnerability 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

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

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

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External links
https://git.kernel.org/stable/c/726f4c241e17be75a9cf6870d80cd7479dc89e8f
https://git.kernel.org/stable/c/061da60716ce0cde99f62f31937b81e1c03acef6
https://git.kernel.org/stable/c/0b6743bd60a56a701070b89fb80c327a44b7b3e2

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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.