SB2025052140 - Improper locking in Linux kernel net vxlan driver
Published: May 21, 2025 Updated: May 21, 2025
Security Bulletin ID
SB2025052140
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2025-37921)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the vxlan_vni_delete_group() function in drivers/net/vxlan/vxlan_vnifilter.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/087a9eb9e5978e3ba362e1163691e41097e8ca20
- https://git.kernel.org/stable/c/2d4a121296aa3940d2df9906f955c2b6b4e38bc3
- https://git.kernel.org/stable/c/3576e9a80b6c4381b01ce0cbaa07f5e92d4492ed
- https://git.kernel.org/stable/c/470206205588559e60035fceb5f256640cb45f99
- https://git.kernel.org/stable/c/5cb9e07f84e527974b12e82e2549fa6c0cc6eef0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.28