Input validation error in Linux kernel - CVE-2025-22076
Published: April 22, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU107806
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2025-22076
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the exfat_file_write_iter(), exfat_file_read_iter() and exfat_file_mmap() functions in fs/exfat/file.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Ubuntu
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws (Ubuntu package)
Ubuntu
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws (Ubuntu package)
How to mitigate CVE-2025-22076
Install update from vendor's website.
Linux kernel - update to 6.13.11
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-azure (Ubuntu package) - update to 6.14.0-1007.7
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-azure (Ubuntu package) - update to 6.14.0-1007.7
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1
External References
- https://git.kernel.org/stable/c/47e35366bc6fa3cf189a8305bce63992495f3efa
- https://git.kernel.org/stable/c/4a9595eb024b8319957c178be3cdeed613ac0795
- https://git.kernel.org/stable/c/539147585ca453db6e3d7a5cf3b9c9690513762d
- https://git.kernel.org/stable/c/e41e33eb795cb9c1ead6ac627d8710546fac6e81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11