SB2025061951 - Memory leak in Linux kernel mptcp
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB2025061951
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) Memory leak (CVE-ID: CVE-2022-50071)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mptcp_sock_destruct() function in net/mptcp/subflow.c, within the __mptcp_wr_shutdown(), mptcp_copy_inaddrs(), mptcp_destroy_common() and mptcp_destroy() functions in net/mptcp/protocol.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.