Use of uninitialized resource in Linux kernel - CVE-2025-21716
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105044
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-2025-21716
CWE-ID: CWE-908
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 use of uninitialized resource within the vxlan_vnifilter_dump() function in drivers/net/vxlan/vxlan_vnifilter.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-21716
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/1693d1fade71646a0731b6b213298cb443d186ea
- https://git.kernel.org/stable/c/5066293b9b7046a906eff60e3949a887ae185a43
- https://git.kernel.org/stable/c/a84d511165d6ba7f331b90ae6b6ce180ec534daa
- https://git.kernel.org/stable/c/cb1de9309a48cc5b771115781eec05075fd67039
- https://git.kernel.org/stable/c/f554bce488605d2f70e06eeab5e4d2448c813713
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13