#VU95509 Improper locking in Linux kernel - CVE-2024-42250

Vulnerability identifier: #VU95509

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-2024-42250

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 cachefiles_daemon_poll() function in fs/cachefiles/daemon.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

---

External links
https://git.kernel.org/stable/c/97cfd5e20ddc2e33e16ce369626ce76c9a475fd7
https://git.kernel.org/stable/c/6bb6bd3dd6f382dfd36220d4b210a0c77c066651
https://git.kernel.org/stable/c/8eadcab7f3dd809edbe5ae20533ff843dfea3a07
https://git.kernel.org/stable/c/cf5bb09e742a9cf6349127e868329a8f69b7a014

---

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.