Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 5.19. It arises when a failure in setting up mqueue or ipc sysctl leads to the use of the regular mntput function to unmount a long-lived mount, resulting in leaks of the mount and mqueue superblocks...

CVE-2026-89576

In the Linux kernel, the following vulnerability has been resolved: dm-era: fix shadowed superblock leak on take-snap failure metadatatakesnap bumps the live superblock refcount and then dmtmshadowblock allocates a new block for the metadata snapshot. If the subsequent dmsmincblock of...

CVE-2026-74484

In the Linux kernel, the following vulnerability has been resolved: binfmtmisc: don't let an 'F' entry pin its own instance An entry registered with 'F' opens its interpreter at registration time and holds that file until the entry is freed. Any entry nobody removes by hand only gets closed once...