Improper locking in Linux kernel mlx5 core driver

1) Improper locking

EUVDB-ID: #VU96159

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-2024-42268

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_fw_reset_set_live_patch() and mlx5_fw_reset_complete_reload() functions in drivers/net/ethernet/mellanox/mlx5/core/fw_reset.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/5d07d1d40aabfd61bab21115639bd4f641db6002
http://git.kernel.org/stable/c/98884e89c90d077f6fe6ba18e6cf6f914642f04e
http://git.kernel.org/stable/c/091268f3c27a5b6d7858a3bb2a0dbcc9cd26ddb5
http://git.kernel.org/stable/c/572f9caa9e7295f8c8822e4122c7ae8f1c412ff9

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.