netdev - WARNING: CPU: 1

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Message-ID: <000000000000bbdb3b05b0477890@google.com>
Date:   Sun, 27 Sep 2020 01:38:18 -0700
From:   syzbot <syzbot+3640e696903873858f7e@...kaller.appspotmail.com>
To:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: WARNING: CPU: 1

Hello,

syzbot found the following issue on:

HEAD commit:    748d1c8a Merge branch 'devlink-Use-nla_policy-to-validate-..
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=13ac3ec3900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=51fb40e67d1e3dec
dashboard link: https://syzkaller.appspot.com/bug?extid=3640e696903873858f7e
compiler:       gcc (GCC) 10.1.0-syz 20200507
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1599be03900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=149fd44b900000

Bisection is inconclusive: the issue happens on the oldest tested release.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1474aaad900000
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1674aaad900000
console output: https://syzkaller.appspot.com/x/log.txt?x=1274aaad900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3640e696903873858f7e@...kaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 1 

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches