SB20240608161 - Improper locking in Linux kernel tty serial driver
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240608161
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-2024-26999)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the pmz_receive_chars() function in drivers/tty/serial/pmac_zilog.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/7a3bbe41efa55323b6ea3c35fa15941d4dbecdef
- https://git.kernel.org/stable/c/bbaafbb4651fede8d3c3881601ecaa4f834f9d3f
- https://git.kernel.org/stable/c/52aaf1ff14622a04148dbb9ccce6d9de5d534ea7
- https://git.kernel.org/stable/c/ca09dfc3cfdf89e6af3ac24e1c6c0be5c575a729
- https://git.kernel.org/stable/c/1be3226445362bfbf461c92a5bcdb1723f2e4907
- https://git.kernel.org/stable/c/69a02273e288011b521ee7c1f3ab2c23fda633ce
- https://git.kernel.org/stable/c/d679c816929d62af51c8e6d7fc0e165c9412d2f3
- https://git.kernel.org/stable/c/ab86cf6f8d24e63e9aca23da5108af1aa5483928
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.216