Input validation error in Linux kernel - CVE-2025-21808
Published: February 28, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105151
CSH Severity: Low
CVSS v4.0: 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-2025-21808
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 dev_xdp_attach() function in net/core/dev.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-21808
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/3595599fa8360bb3c7afa7ee50c810b4a64106ea
- https://git.kernel.org/stable/c/557707906dd3e34b8a8c265f664d19f95799937e
- https://git.kernel.org/stable/c/5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1
- https://git.kernel.org/stable/c/b1bc4a35a04cbeb85b6ef5911ec015baa424989f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.76