SB2024071326 - Use-after-free in Linux kernel cachefiles
Published: July 13, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071326
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-40900)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the cachefiles_flush_reqs() function in fs/cachefiles/daemon.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/9f13aacdd4ee9a7644b2a3c96d67113cd083c9c7
- https://git.kernel.org/stable/c/50d0e55356ba5b84ffb51c42704126124257e598
- https://git.kernel.org/stable/c/37e19cf86a520d65de1de9cb330415c332a40d19
- https://git.kernel.org/stable/c/0fc75c5940fa634d84e64c93bfc388e1274ed013
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.95
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.35