SB2024060385 - Improper locking in Linux kernel mptcp
Published: June 3, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024060385
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-2024-26781)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the subflow_get_info() function in net/mptcp/diag.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/70e5b013538d5e4cb421afed431a5fcd2a5d49ee
- https://git.kernel.org/stable/c/cc32ba2fdf3f8b136619fff551f166ba51ec856d
- https://git.kernel.org/stable/c/f27d319df055629480b84b9288a502337b6f2a2e
- https://git.kernel.org/stable/c/fa8c776f4c323a9fbc8ddf25edcb962083391430
- https://git.kernel.org/stable/c/d487e7ba1bc7444d5f062c4930ef8436c47c7e63
- https://git.kernel.org/stable/c/d6a9608af9a75d13243d217f6ce1e30e57d56ffe
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.212
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.151
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8