audit: type=1400 audit(1562062853.261:9): avc:  denied  { map } for  pid=1782 comm="syz-execprog" path="/root/syzkaller-shm061928958" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN NOPTI
Modules linked in:
CPU: 1 PID: 1812 Comm: syz-executor.0 Not tainted 4.14.131+ #13
task:         (ptrval) task.stack:         (ptrval)
RIP: 0010:kobject_uevent_env+0xa3/0xc60 lib/kobject_uevent.c:355
RSP: 0018:ffff8881d1df7aa8 EFLAGS: 00010206
RAX: 0000000000000018 RBX: 0000000000000002 RCX: 1ffff11039f869d4
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000000000c0
RBP: ffff8881d656e1d0 R08: 0000000000000001 R09: 0000000000000001
R10: ffff8881cfc34ed8 R11: 0000000000000001 R12: 00000000000000a0
R13: dffffc0000000000 R14: ffff8881d656e0c8 R15: 00000000000000a0
FS:  0000000001f16940(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7971b98000 CR3: 00000001c4f18002 CR4: 00000000001606a0
Call Trace:
 loop_clr_fd+0x49e/0xac0 drivers/block/loop.c:1059
 lo_ioctl+0x460/0x1a30 drivers/block/loop.c:1414
Code: 03 42 80 3c 28 00 0f 85 44 0a 00 00 4d 8b 64 24 18 4d 85 e4 0f 84 22 02 00 00 e8 39 0f af fe 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 10 0a 00 00 49 8b 6c 24 20 48 85 ed 74 b0 
RIP: kobject_uevent_env+0xa3/0xc60 lib/kobject_uevent.c:355 RSP: ffff8881d1df7aa8
---[ end trace bd0949983b2f8624 ]---
Kernel panic - not syncing: Fatal exception
Kernel Offset: 0x1f400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..