#VU111700 Input validation error in Linux kernel - CVE-2025-38044

Vulnerability identifier: #VU111700

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-2025-38044

CWE-ID: CWE-20

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 input validation within the mlx5e_setup_tc_mqprio() function in drivers/net/ethernet/mellanox/mlx5/core/en_main.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/0884dd3abbe80307a2d4cbdbe5e312be164f8adb
https://git.kernel.org/stable/c/2ad41beb7df3bd63b209842d16765ec59dafe6e4
https://git.kernel.org/stable/c/4731d5328f507ae8fd8a57abbca9119ec7a8d665
https://git.kernel.org/stable/c/5c9eca180a4235abd56cc7f7308ca72128d93dce
https://git.kernel.org/stable/c/9d1a5be86dbe074bd8dd6bdd63a99d6bb66d5930
https://git.kernel.org/stable/c/a79efc44b51432490538a55b9753a721f7d3ea42
https://git.kernel.org/stable/c/c91447e35b9bea60bda4408c48e7891d14351021
https://git.kernel.org/stable/c/e43fd82bb2110bf9d13d800cdc49cceddfd0ede5

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?