Improper Check for Unusual or Exceptional Conditions in Linux kernel - CVE-2026-45915
Published: May 28, 2026
Vulnerability identifier: #VU132572
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-45915
CWE-ID: CWE-754
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of link counts in vfat_rmdir() and msdos_rmdir() when processing a corrupted FAT filesystem image during directory removal. A local user can trigger directory removal on a crafted filesystem image to cause a denial of service.
How to mitigate CVE-2026-45915
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/17866f8a0822d414cb02e621cf003a7d04396ef8
- https://git.kernel.org/stable/c/7fe0de287e931e07cb96ecf1f449b2ebdb0e1115
- https://git.kernel.org/stable/c/8cafcb881364af5ef3a8b9fed4db254054033d8a
- https://git.kernel.org/stable/c/955c5d670b5ae07c78f4345e23a895638db96ce1
- https://git.kernel.org/stable/c/9894c79fd9466612d0514be157b5c30cd93aa645
- https://git.kernel.org/stable/c/cd569b87378b9c33ae13c23d6bb9d205d66f7c4b
- https://git.kernel.org/stable/c/d0bb592fa9def2bace90ac8926c0a1d6fa8c1aa0
- https://git.kernel.org/stable/c/d3b7ffa90f613938128432c7b2f35b7aa4bdd86b