CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.5. It affects Linux.
CVE
CVE-2026-45915
Severity
MEDIUM
CVSS
5.5
EPSS
0.16%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: fat: avoid parent link count underflow in rmdir Corrupted FAT images can leave a directory inode with an incorrect i_nlink (e.g. 2 even though subdirectories exist). rmdir then unconditionally calls drop_nlink(dir) and can drive i_nlink to 0, triggering the WARN_ON in drop_nlink(). Add a sanity check in vfat_rmdir() and msdos_rmdir(): only drop the parent link count when it is at least 3, otherwise report a filesystem error.
Related CVEs
Other vulnerabilities affecting the same vendor(s)