#VU90775 Improper locking in Linux kernel - CVE-2024-26962

Vulnerability identifier: #VU90775

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-2024-26962

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 make_stripe_request(), raid5_make_request(), raid5_start() and raid5_init() functions in drivers/md/raid5.c, within the is_suspended() and md_account_bio() functions in drivers/md/md.c, within the raid_map(), raid_message(), raid_presuspend() and raid_resume() functions in drivers/md/dm-raid.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/5943a34bf6bab5801e08a55f63e1b8d5bc90dae1
https://git.kernel.org/stable/c/a8d249d770cb357d16a2097b548d2e4c1c137304
https://git.kernel.org/stable/c/41425f96d7aa59bc865f60f5dda3d7697b555677

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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.