CVE-2026-64266

A flaw was found in the Linux kernel's FUSE Filesystem in Userspace component. The fusereffolio function does not properly re-lock a request after unlocking it, which can lead to a use-after-free vulnerability. A local attacker could exploit this flaw to potentially execute arbitrary code or caus...

UBUNTU-CVE-2026-64266

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ubi: Fix race condition between ctrlcdevioctl and ubicdevioctl CVE-2021-47634 A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers write. This flaw allows a local user t...