In the Linux kernel, the following vulnerability has been resolved: ksmbd: add chann_lock to protect ksmbd_chann_list xarray ksmbd_chann_list xarray lacks synchronization, allowing use-after-free in multi-channel sessions (between lookup_chann_list() and ksmbd_chann_del). Adds rw_semaphore chann_lock to struct ksmbd_session and protects all xa_load/xa_store/xa_erase accesses.
https://git.kernel.org/stable/c/e4a8a96a93d08570e0405cfd989a8a07e5b6ff33
https://git.kernel.org/stable/c/36ef605c0395b94b826a8c8d6f2697071173de6e