SB2025020440 - Infinite loop in Linux kernel iomap
Published: February 4, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025020440
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Infinite loop (CVE-ID: CVE-2025-21667)
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.
References
- 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