linux-kernel - lost connection to test machine (3)

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Date:   Wed, 27 Dec 2017 10:18:30 -0800
From:   syzbot <syzbot+4396883fa8c4f64e0175@...kaller.appspotmail.com>
To:     linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: lost connection to test machine (3)

Hello,

syzkaller hit the following crash on  
beacbc68ac3e23821a681adb30b45dc55b17488d
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
C reproducer is attached
syzkaller reproducer is attached. See https://goo.gl/kgGztJ
for information about syzkaller reproducers

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: <syzbot+4396883fa8c4f64e0175@...kaller.appspotmail.com>
It will help syzbot understand when the bug is fixed. See footer for  
details.
If you forward the report, please keep this part and the footer.

---
This bug is generated by a dumb bot. It may contain errors.
See https://goo.gl/tpsmEJ for details.
Direct all questions to syzkaller@...glegroups.com.

syzbot will keep track of this bug report.
If you forgot to add the Reported-by tag, once the fix for this bug is  
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into any tree, please reply to this email with:
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If you want to test a patch for this bug, please reply with:
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View attachment "config.txt" of type "text/plain" (126387 bytes)

Download attachment "raw.log" of type "application/octet-stream" (165860 bytes)

View attachment "repro.txt" of type "text/plain" (926 bytes)

Download attachment "repro.c" of type "application/octet-stream" (2779 bytes)