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Message-ID: <0000000000006a55890608843368@google.com>
Date: Tue, 24 Oct 2023 23:02:31 -0700
From: syzbot <syzbot+f32cbede7fd867ce0d56@...kaller.appspotmail.com>
To: davem@...emloft.net, edumazet@...gle.com, hdanton@...a.com, 
	kernel@...gutronix.de, kuba@...nel.org, linux-can@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux@...pel-privat.de, mkl@...gutronix.de, 
	netdev@...r.kernel.org, pabeni@...hat.com, robin@...tonic.nl, 
	socketcan@...tkopp.net, syzkaller-bugs@...glegroups.com, wg@...ndegger.com
Subject: Re: [syzbot] [can?] possible deadlock in j1939_session_activate

syzbot has bisected this issue to:

commit 259bdba27e32368b4404f69d613b1c1014c07cbf
Author: Oliver Hartkopp <socketcan@...tkopp.net>
Date:   Wed Mar 9 12:04:16 2022 +0000

    vxcan: enable local echo for sent CAN frames

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14a2e55d680000
start commit:   84186fcb834e Merge tag 'urgent/nolibc.2023.10.16a' of git:..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16a2e55d680000
console output: https://syzkaller.appspot.com/x/log.txt?x=12a2e55d680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7d1f30869bb78ec6
dashboard link: https://syzkaller.appspot.com/bug?extid=f32cbede7fd867ce0d56
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15c6300d680000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17e6935d680000

Reported-by: syzbot+f32cbede7fd867ce0d56@...kaller.appspotmail.com
Fixes: 259bdba27e32 ("vxcan: enable local echo for sent CAN frames")

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

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