Improper locking in Linux kernel md driver

1) Improper locking

EUVDB-ID: #VU96147

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-2024-43855

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the md_end_flush(), submit_flushes() and md_submit_flush_data() functions in drivers/md/md.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/32226070813140234b6c507084738e8e8385c5c6
http://git.kernel.org/stable/c/2d0738a8322bf4e5bfe693d16b3111928a9ccfbf
http://git.kernel.org/stable/c/ca963eefbc3331222b6121baa696d49ba2008811
http://git.kernel.org/stable/c/611d5cbc0b35a752e657a83eebadf40d814d006b

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.