#VU103595 Infinite loop in Linux kernel - CVE-2025-21667
Published: February 4, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU103595
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21667
CWE-ID: CWE-835
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 infinite loop within the iomap_write_delalloc_scan() function in fs/iomap/buffered-io.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/402ce16421477e27f30b57d6d1a6dc248fa3a4e4
- https://git.kernel.org/stable/c/7ca4bd6b754913910151acce00be093f03642725
- https://git.kernel.org/stable/c/91371922704c8d82049ef7c2ad974d0a2cd1174d
- https://git.kernel.org/stable/c/c13094b894de289514d84b8db56d1f2931a0bade
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.127
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.74