syzbot has bisected this bug to: commit 9d71dd0c70099914fcd063135da3c580865e924c Author: The j1939 authors <linux-can@xxxxxxxxxxxxxxx> Date: Mon Oct 8 09:48:36 2018 +0000 can: add support of SAE J1939 protocol bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11bc06d6e00000 start commit: 00aff683 Merge tag 'for-5.4-rc6-tag' of git://git.kernel.o.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=13bc06d6e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=15bc06d6e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c5e2eca3f31f9bf dashboard link: https://syzkaller.appspot.com/bug?extid=ca172a0ac477ac90f045 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=144150e2e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11aaa9fce00000 Reported-by: syzbot+ca172a0ac477ac90f045@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol") For information about bisection process see: https://goo.gl/tpsmEJ#bisection