Vulnerability identifier: #VU96293

Vulnerability 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-2024-43866

CWE-ID: CWE-476

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 NULL pointer dereference within the mlx5_sf_dev_shutdown() function in drivers/net/ethernet/mellanox/mlx5/core/sf/dev/driver.c, within the mlx5_try_fast_unload() and shutdown() 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

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External links
http://git.kernel.org/stable/c/6b6c2ebd83f2bf97e8f221479372aaca97a4a9b2
http://git.kernel.org/stable/c/6048dec754554a1303d632be6042d3feb3295285
http://git.kernel.org/stable/c/1b75da22ed1e6171e261bc9265370162553d5393

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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.