#VU105416 Input validation error in Linux kernel - CVE-2025-21828

Vulnerability identifier: #VU105416

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-2025-21828

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 net/mac80211/driver-ops.h. 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/9efb5531271fa7ebae993b2a33a705d9947c7ce6
https://git.kernel.org/stable/c/aa3ce3f8fafa0b8fb062f28024855ea8cb3f3450
https://git.kernel.org/stable/c/cd10b7fcb95a6a86c67adc54304c59a578ab16af
https://git.kernel.org/stable/c/cf21ef3d430847ba864bbc9b2774fffcc03ce321

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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.