SB20251216181 - Resource management error in Linux kernel mptcp
Published: December 16, 2025
Security Bulletin ID
SB20251216181
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) Resource management error (CVE-ID: CVE-2025-68227)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the mptcp_wnd_end() function in net/mptcp/protocol.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/037cc50589643342d69185b663ecf9d26cce91e8
- https://git.kernel.org/stable/c/1a0d5c74af9b6ba9ffdf1172de5a1a6df5922a00
- https://git.kernel.org/stable/c/344974ea1a3ca30e4920687b0091bda4438cebdb
- https://git.kernel.org/stable/c/7ee8f015eb47907745e2070184a8ab1e442ac3c4
- https://git.kernel.org/stable/c/92c4092fe012ecdfa5fb05d394f1c1d8f91ad81c
- https://git.kernel.org/stable/c/9b1980b6f23fa30bf12add19f37c7458625099eb
- https://git.kernel.org/stable/c/c77b3b79a92e3345aa1ee296180d1af4e7031f8f