#VU90570 NULL pointer dereference in Linux kernel - CVE-2024-26858

Vulnerability identifier: #VU90570

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-2024-26858

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 mlx5e_txwqe_complete() function in drivers/net/ethernet/mellanox/mlx5/core/en_tx.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/d1f71615dbb305f14f3b756cce015d70d8667549
https://git.kernel.org/stable/c/936ef086161ab89a7f38f7a0761d6a3063c3277e
https://git.kernel.org/stable/c/b7cf07586c40f926063d4d09f7de28ff82f62b2a

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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.