SB20250422168 - Incorrect calculation in Linux kernel smb server
Published: April 22, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250422168
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) Incorrect calculation (CVE-ID: CVE-2025-22074)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation within the smb2_oplock_break_noti() and smb2_lease_break_noti() functions in fs/smb/server/oplock.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/20378cf48359f39dee0ef9b61470ebe77bd49c0d
- https://git.kernel.org/stable/c/457db486203c90e10c3efc87fd45cc7000b1cd36
- https://git.kernel.org/stable/c/4790bcb269e5d6d88200a67c54ae6d627332a3be
- https://git.kernel.org/stable/c/c2ec33d46b4d1c8085dab5d02e00b21f4f0fb8a9
- https://git.kernel.org/stable/c/ddb7ea36ba7129c2ed107e2186591128618864e1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.87