CVE-2025-68239

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel’s binfmt misc subsystem. Specifically, the bm register write() function opens an executable file using open exec(), which restricts write access to prevent modification during execution. If an error occurs, the file is closed directly with filp close(), failing to restore write permissions. This can lead to subsequent write operations on the same file failing. The issue is addressed by calling exe file allow write access() before filp close() to properly restore write permissions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.