can: j1939: socket: rework socket locking for j1939_sk_release() and j1939_sk_sendmsg()
j1939_sk_sendmsg() should be protected by lock_sock() to avoid race with j1939_sk_bind() and j1939_sk_release(). Reported-by: syzbot+afd421337a736d6c1ee6@syzkaller.appspotmail.com Reported-by: syzbot+6d04f6a1b31a0ae12ca9@syzkaller.appspotmail.com Fixes: 9d71dd0c ("can: add support of SAE J1939 protocol") Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
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