SB2024071327 - Use-after-free in Linux kernel cachefiles
Published: July 13, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071327
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-2024-40899)
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_req_put(), cachefiles_ondemand_daemon_read() and cachefiles_ondemand_send_req() functions in fs/cachefiles/ondemand.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/99e9c5bd27ddefa0f9db88625bf5e31c1e833d62
- https://git.kernel.org/stable/c/a6de82765e12fb1201ab607f0d3ffe3309b30fc0
- https://git.kernel.org/stable/c/1d902d9a3aa4f2a8bda698294e34be788be012fc
- https://git.kernel.org/stable/c/de3e26f9e5b76fc628077578c001c4a51bf54d06
- 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