Re: INFO: rcu detected stall in tipc_release

From: syzbot
Date: Fri Jul 17 2020 - 00:20:07 EST


syzbot has bisected this issue to:

commit 5e9eeccc58f3e6bcc99b929670665d2ce047e9c9
Author: Tuong Lien <tuong.t.lien@xxxxxxxxxxxxxx>
Date: Wed Jun 3 05:06:01 2020 +0000

tipc: fix NULL pointer dereference in streaming

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14641620900000
start commit: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=16641620900000
console output: https://syzkaller.appspot.com/x/log.txt?x=12641620900000
kernel config: https://syzkaller.appspot.com/x/.config?x=7be693511b29b338
dashboard link: https://syzkaller.appspot.com/bug?extid=3654c027d861c6df4b06
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12948233100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11344c05100000

Reported-by: syzbot+3654c027d861c6df4b06@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 5e9eeccc58f3 ("tipc: fix NULL pointer dereference in streaming")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection