kasan: CONFIG_KASAN_INLINE enabled
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=33 sclass=netlink_tcpdiag_socket pig=26759 comm=syz-executor2
kasan: GPF could be caused by NULL-ptr deref or user memory access
device syz2 left promiscuous mode
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 26761 Comm: syz-executor1 Not tainted 4.9.44-gbf7ef8f #34
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c66b3000 task.stack: ffff8801a7850000
RIP: 0010:[<ffffffff824b08c8>]  [<ffffffff824b08c8>] loop_set_fd drivers/block/loop.c:894 [inline]
RIP: 0010:[<ffffffff824b08c8>]  [<ffffffff824b08c8>] lo_ioctl+0x5a8/0x1990 drivers/block/loop.c:1340
RSP: 0018:ffff8801a7857b48  EFLAGS: 00010206
RAX: 0000000000000036 RBX: dffffc0000000000 RCX: ffffc900069ed000
RDX: 0000000000000054 RSI: 0000000000000002 RDI: 00000000000001b0
RBP: ffff8801a7857bc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffff10034f0af26 R12: 0000000000000000
R13: ffff8801d555e400 R14: 0000000000000000 R15: ffff8801cb849700
FS:  00007f3b5f8bd700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020cf3ff8 CR3: 00000001c8599000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81bd8c5c ffffffff81bd8942 0000000000006000 ffff8801d555e550
 0000000000700006 ffff8801d64a0940 ffff8801d64a0750 ffff8801a767f000
 ffff8801cb8497e0 000000000000011c ffff8801d555e558 ffff8801cb849700
Call Trace:
 [<ffffffff81d35b5a>] __blkdev_driver_ioctl block/ioctl.c:294 [inline]
 [<ffffffff81d35b5a>] blkdev_ioctl+0x4aa/0x1a60 block/ioctl.c:590
 [<ffffffff8162a67e>] block_ioctl+0xde/0x120 fs/block_dev.c:1686
 [<ffffffff815ac81a>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<ffffffff815ac81a>] do_vfs_ioctl+0x1aa/0x10c0 fs/ioctl.c:679
 [<ffffffff815ad7bf>] SYSC_ioctl fs/ioctl.c:694 [inline]
 [<ffffffff815ad7bf>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 [<ffffffff838a6885>] entry_SYSCALL_64_fastpath+0x23/0xc6
Code: 00 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 ee 12 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b0 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 e4 12 00 00 4d 8b a4 24 b0 01 00 00 4c 89 e0 
RIP  [<ffffffff824b08c8>] loop_set_fd drivers/block/loop.c:894 [inline]
RIP  [<ffffffff824b08c8>] lo_ioctl+0x5a8/0x1990 drivers/block/loop.c:1340
 RSP <ffff8801a7857b48>
---[ end trace 4df93cc88d917da5 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..