ROOT-OS-UBUNTU-2204-CVE-2026-64396 CVE-2026-64396 in linux - Patched by Root

Root has patched CVE-2026-64396 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available...

CVE-2026-64396

A flaw was found in ksmbd, a component of the Linux kernel. A local attacker could exploit a use-after-free vulnerability in the SMB2LOCK deferred-lock cancellation mechanism. This flaw occurs when a file lock is freed prematurely while still being referenced, potentially leading to a system cras...

CVE-2026-64396 ksmbd: fix UAF of struct file_lock in SMB2_LOCK deferred-lock cancellation

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix UAF of struct filelock in SMB2LOCK deferred-lock cancellation When a blocking byte-range lock request is deferred in the FILELOCKDEFERRED path, ksmbd registers the asynchronous work into the connection's asyncrequests...

CVE-2026-64396

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix UAF of struct filelock in SMB2LOCK deferred-lock cancellation When a blocking byte-range lock request is deferred in the FILELOCKDEFERRED path, ksmbd registers the asynchronous work into the connection's asyncrequests...