Memory leak in Linux kernel btrfs

1) Memory leak

EUVDB-ID: #VU96833

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-44972

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the extent_write_locked_range() function in fs/btrfs/extent_io.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

External links

http://git.kernel.org/stable/c/ba4dedb71356638d8284e34724daca944be70368
http://git.kernel.org/stable/c/d3b403209f767e5857c1b9fda66726e6e6ffc99f
http://git.kernel.org/stable/c/97713b1a2ced1e4a2a6c40045903797ebd44d7e0

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.