CVE-2026-89768: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fs: fix user path of nested backing files backingfileopen derives the path to be stored in the new backing file from userfile-fpath. This is incorrect when userfile itself is a backing file, which is the case for nested stacking...

Unbreakable Enterprise kernel security update

kernel-uek 4.1.12-61.1.17 - sched: panic on corrupted stack end Jann Horn Orabug: 24971921 CVE-2016-1583 - ecryptfs: forbid opening files without mmap handler Jann Horn Orabug: 24971921 CVE-2016-1583 - proc: prevent stacking filesystems on top Jann Horn Orabug: 24971921 CVE-2016-1583...

Exploiting Recursion in the Linux Kernel

Posted by Jann Horn, Google Project Zero On June 1st, I reported an arbitrary recursion bug in the Linux kernel that can be triggered by a local user on Ubuntu if the system was installed with home directory encryption support. If you want to see the crasher, the exploit code and the shorter bug...