#VU94226 Use-after-free in Linux kernel - CVE-2024-40900
Published: July 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94226
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-40900
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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