On Thu, 5 Oct 2023 11:46:33 +0200 Marc Kleine-Budde wrote:
> Lock jsk->sk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)
> modifies jsk->filters while receiving packets.
Doesn't it potentially introduce sleep in atomic?
j1939_sk_recv_match()
spin_lock_bh(&priv->j1939_socks_lock);
j1939_sk_recv_match_one()
j1939_sk_match_filter()
lock_sock()
sleep
