SB20250226479 - Improper locking in Linux kernel net
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226479
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-2022-49420)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the compute_score() and __udp_v6_is_mcast_sock() functions in net/ipv6/udp.c, within the WRITE_ONCE() and ip6_datagram_send_ctl() functions in net/ipv6/datagram.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.