Improper locking in Linux kernel mlx5 core driver

1) Improper locking

EUVDB-ID: #VU92019

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-2024-35961

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 mlx5_sf_dev_remove() function in drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c, within the mlx5_init_one_devl_locked(), mlx5_init_one(), mlx5_uninit_one(), mlx5_init_one_light(), mlx5_uninit_one_light(), probe_one() and remove_one() functions in drivers/net/ethernet/mellanox/mlx5/core/main.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/8c91c60858473731bcdaf04fda99fcbcf84420d4
http://git.kernel.org/stable/c/967caa3d37c078e5b95a32094657e6a4cad145f0
http://git.kernel.org/stable/c/c6e77aa9dd82bc18a89bf49418f8f7e961cfccc8

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.