SB2025020435 - Improper locking in Linux kernel net driver
Published: February 4, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025020435
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-2025-21678)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the gtp_newlink() and gtp_net_exit_batch_rtnl() functions in drivers/net/gtp.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/036f8d814a2cd11ee8ef62b8f3e7ce5dec0ee4f3
- https://git.kernel.org/stable/c/5f1678346109ff3a6d229d33437fcba3cce9209d
- https://git.kernel.org/stable/c/86f73d4ab2f27deeff22ba9336ad103d94f12ac7
- https://git.kernel.org/stable/c/bb11f992f5a475bc68ef959f17a55306f0328495
- https://git.kernel.org/stable/c/c986380c1d5274c4d5e935addc807d6791cc23eb
- https://git.kernel.org/stable/c/eb28fd76c0a08a47b470677c6cef9dd1c60e92d1
- https://git.kernel.org/stable/c/efec287cbac92ac6ee8312a89221854760e13b34
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.127