netdev - Re: BUG: using smp_processor_id() in preemptible code in tipc_crypto

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Message-ID: <000000000000f9638c05b13ad2a1@google.com>
Date:   Fri, 09 Oct 2020 03:58:09 -0700
From:   syzbot <syzbot+263f8c0d007dc09b2dda@...kaller.appspotmail.com>
To:     davem@...emloft.net, jmaloy@...hat.com, jon.maloy@...csson.com,
        kuba@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        tipc-discussion@...ts.sourceforge.net, tuong.t.lien@...tech.com.au,
        ying.xue@...dreiver.com, ying.xue@...driver.com
Subject: Re: BUG: using smp_processor_id() in preemptible code in tipc_crypto_xmit

syzbot suspects this issue was fixed by commit:

commit bb8872a1e6bc911869a729240781076ed950764b
Author: Tuong Lien <tuong.t.lien@...tech.com.au>
Date:   Sat Aug 29 19:37:55 2020 +0000

    tipc: fix using smp_processor_id() in preemptible

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=100f5bb8500000
start commit:   6a9dc5fd lib: Revert use of fallthrough pseudo-keyword in ..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=978db74cb30aa994
dashboard link: https://syzkaller.appspot.com/bug?extid=263f8c0d007dc09b2dda
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=131a8c96900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1747c605900000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: tipc: fix using smp_processor_id() in preemptible

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