Reachable assertion in Linux kernel - CVE-2025-40100
Published: October 31, 2025
Vulnerability identifier: #VU117859
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-40100
CWE-ID: CWE-617
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 perform a denial of service (DoS) attack.
The vulnerability exists due to reachable assertion within the populate_free_space_tree() function in fs/btrfs/free-space-tree.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/289498da343b05c886f19b4269429606f86dd17b
- https://git.kernel.org/stable/c/3fdcfd91b93f930d87843156c7c8cc5fbcf9b144
- https://git.kernel.org/stable/c/4f4b9ca73f84130d9fbb0fc02306ce94ce8bdbe6
- https://git.kernel.org/stable/c/a5a51bf4e9b7354ce7cd697e610d72c1b33fd949
- https://git.kernel.org/stable/c/eb145463f22d7d32d426b29fe9810de9e792b6ba