In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()
See the procedure below:
ksmbd_launch_ksmbd_durable_scavenger
durable_scavenger_running = true
server_conf.dh_task = kthread_run() // fail, dh_task is an ERR_PTR()
server_ctrl_handle_reset
ksmbd_stop_durable_scavenger
kthread_stop(server_conf.dh_task) // invalid pointer
Ссылки 5
https://git.kernel.org/stable/c/3f8651f6bb52159c9e23993c77a2b51b9505ad64
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a2eb72b4d53bb9d8d6c00f3f794eaccb4b1ce5ed
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/af9cb997d13a17029a0d3863e33f4c837e27a8ae
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b2d78c199dfd983638662ace0612d4fade3dbea1
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/bef46b604732d83f8da29f782868de4d25bf972c
416baaa9-dc9f-4396-8d5f-8c081fb06d67