#VU95016 Improper error handling in Linux kernel - CVE-2024-42103

Vulnerability identifier: #VU95016

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-2024-42103

CWE-ID: CWE-388

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 error handling within the btrfs_reclaim_bgs_work() function in fs/btrfs/block-group.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/522b39bd7163e8dc49f8cf10b9b782218ac48746
https://git.kernel.org/stable/c/aa1d8cc0cc500e06b316cd6732d4e6c1388fe33c
https://git.kernel.org/stable/c/f8e960be923f74a273c62478c9cab9523936752b
https://git.kernel.org/stable/c/326fa14549d7969ef80d3f5beea5470cd1c8e67f
https://git.kernel.org/stable/c/48f091fd50b2eb33ae5eaea9ed3c4f81603acf38

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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.