linux-kernel - Re: BUG: unable to handle kernel paging request in free

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Message-ID: <000000000000274d750586cb0d38@google.com>
Date:   Thu, 18 Apr 2019 02:59:00 -0700
From:   syzbot <syzbot+438a5abd4f53adb1c073@...kaller.appspotmail.com>
To:     davem@...emloft.net, jon.maloy@...csson.com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        tipc-discussion@...ts.sourceforge.net, ying.xue@...driver.com
Subject: Re: BUG: unable to handle kernel paging request in free_block (5)

syzbot has bisected this bug to:

commit 52dfae5c85a4c1078e9f1d5e8947d4a25f73dd81
Author: Jon Maloy <jon.maloy@...csson.com>
Date:   Thu Mar 22 19:42:52 2018 +0000

     tipc: obtain node identity from interface by default

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15065bdd200000
start commit:   e6986423 socket: fix compat SO_RCVTIMEO_NEW/SO_SNDTIMEO_NEW
git tree:       net
final crash:    https://syzkaller.appspot.com/x/report.txt?x=17065bdd200000
console output: https://syzkaller.appspot.com/x/log.txt?x=13065bdd200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4fb64439e07a1ec0
dashboard link: https://syzkaller.appspot.com/bug?extid=438a5abd4f53adb1c073
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12adddbf200000

Reported-by: syzbot+438a5abd4f53adb1c073@...kaller.appspotmail.com
Fixes: 52dfae5c85a4 ("tipc: obtain node identity from interface by default")

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