SB20240625139 - Improper locking in Linux kernel smb client
Published: June 25, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240625139
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-2024-39468)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the smb2_find_smb_tcon() function in fs/smb/client/smb2transport.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/b09b556e48968317887a11243a5331a7bc00ece5
- https://git.kernel.org/stable/c/225de871ddf994f69a57f035709cad9c0ab8615a
- https://git.kernel.org/stable/c/8d0f5f1ccf675454a833a573c53830a49b7d1a47
- https://git.kernel.org/stable/c/02c418774f76a0a36a6195c9dbf8971eb4130a15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.221
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.162
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.94
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.34