WARNING: CPU: 1

From: syzbot
Date: Sun Sep 27 2020 - 04:38:22 EST


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@xxxxxxxxxxxxxxxxxxxxxxxxx

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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@xxxxxxxxxxxxxxxx.

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