CVE-2025-21945 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ksmbd: fix use-after-free in smb2_lock

If smb_lock->zero_len has value ->llist of smb_lock is not delete and flock is old one. It will cause use-after-free on error handling routine.

Reference

https://git.kernel.org/stable/c/410ce35a2ed6d0e114132bba29af49b69880c8c7 https://git.kernel.org/stable/c/636e021646cf9b52ddfea7c809b018e91f2188cb https://git.kernel.org/stable/c/84d2d1641b71dec326e8736a749b7ee76a9599fc https://git.kernel.org/stable/c/8573571060ca466cbef2c6f03306b2cc7b883506 https://git.kernel.org/stable/c/a0609097fd10d618aed4864038393dd75131289e