Hello,

syzkaller hit the following crash on  
2c1cfa49901839136e578ca516a7e230182da024
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


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Reported-by: syzbot+a9b2d0e21403c12cb074@syzkaller.appspotmail.com
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details.
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audit: type=1400 audit(1515952945.475:8): avc:  denied  { map } for   
pid=3656 comm="syzkaller443286" path="/dev/ashmem" dev="devtmpfs" ino=8948  
scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023  
tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1

======================================================
WARNING: possible circular locking dependency detected
4.15.0-rc7+ #261 Not tainted
----------------------------------------------


---
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