In the Linux kernel, the following vulnerability has been resolved: ksmbd: add refcnt to ksmbd_conn struct When sending an oplock break request, opinfo->conn is used, But freed ->conn can be used on multichannel. This patch add a reference count to the ksmbd_conn struct so that it can be freed when it is no longer used.
https://git.kernel.org/stable/c/ee426bfb9d09b29987369b897fe9b6485ac2be27
https://git.kernel.org/stable/c/e9dac92f4482a382e8c0fe1bc243da5fc3526b0c
https://git.kernel.org/stable/c/9fd3cde4628bcd3549ab95061f2bab74d2ed4f3b
https://git.kernel.org/stable/c/18f06bacc197d4ac9b518ad1c69999bc3d83e7aa