Race condition in Linux kernel btrfs

1) Race condition

EUVDB-ID: #VU93373

Risk: Low

CVSSv3.1: 4.8 [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-2024-37354

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition within the btrfs_log_prealloc_extents() function in fs/btrfs/tree-log.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/1ff2bd566fbcefcb892be85c493bdb92b911c428
http://git.kernel.org/stable/c/3d08c52ba1887a1ff9c179d4b6a18b427bcb2097
http://git.kernel.org/stable/c/f4e5ed974876c14d3623e04dc43d3e3281bc6011
http://git.kernel.org/stable/c/9d274c19a71b3a276949933859610721a453946b

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.