#VU103126 Improper locking in Linux kernel - CVE-2024-57939

Vulnerability identifier: #VU103126

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-2024-57939

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 DEFINE_SPINLOCK() and die() functions in arch/riscv/kernel/traps.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/6a97f4118ac07cfdc316433f385dbdc12af5025e
https://git.kernel.org/stable/c/76ab0afcdbe8c9685b589016ee1c0e25fe596707
https://git.kernel.org/stable/c/c21df31fc2a4afc02a6e56511364e9e793ea92ec
https://git.kernel.org/stable/c/f48f060a4b36b5e96628f6c3fb1540f1e8dedb69

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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.