Re: WARNING: suspicious RCU usage in qrtr_ns_worker

From: syzbot
Date: Thu Jul 02 2020 - 01:59:17 EST


syzbot has bisected this bug to:

commit e42671084361302141a09284fde9bbc14fdd16bf
Author: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Date: Thu May 7 12:53:06 2020 +0000

net: qrtr: Do not depend on ARCH_QCOM

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=105f7755100000
start commit: 7ae77150 Merge tag 'powerpc-5.8-1' of git://git.kernel.org..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=125f7755100000
console output: https://syzkaller.appspot.com/x/log.txt?x=145f7755100000
kernel config: https://syzkaller.appspot.com/x/.config?x=be4578b3f1083656
dashboard link: https://syzkaller.appspot.com/bug?extid=0f84f6eed90503da72fc
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1521944d100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1298d245100000

Reported-by: syzbot+0f84f6eed90503da72fc@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: e42671084361 ("net: qrtr: Do not depend on ARCH_QCOM")

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