nla_parse: 14 callbacks suppressed
netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 24278 Comm: syz-executor6 Not tainted 4.14.0-rc8+ #165
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d8786540 task.stack: ffff8801cfa18000
RIP: 0010:bdev_get_queue include/linux/blkdev.h:998 [inline]
RIP: 0010:bdev_logical_block_size include/linux/blkdev.h:1434 [inline]
RIP: 0010:bd_set_size+0x5f/0x330 fs/block_dev.c:1395
RSP: 0018:ffff8801cfa1f9a0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900026cc000
RDX: 00000000000000aa RSI: ffffffff81b9dd9c RDI: 0000000000000550
RBP: ffff8801cfa1f9d0 R08: ffff8801c24886c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801da805040
R13: 0000000000000000 R14: ffff8801d469c940 R15: ffff8801d469cc68
FS:  00007fe9f698a700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001bdbc25000 CR3: 00000001cf6bb000 CR4: 00000000001426f0
Call Trace:
 loop_clr_fd+0x4fc/0xb50 drivers/block/loop.c:1048
 lo_ioctl+0x1301/0x1b70 drivers/block/loop.c:1360
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0xc07/0x1de0 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1872
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x452869
RSP: 002b:00007fe9f6989be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452869
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000017
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f6e60
R13: 00000000ffffffff R14: 00007fe9f698a6d4 R15: 0000000000000000
Code: 03 80 3c 02 00 0f 85 c6 02 00 00 49 8b 9c 24 e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 50 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 76 02 00 00 4d 8d 74 24 08 48 b8 00 00 00 00 
RIP: bdev_get_queue include/linux/blkdev.h:998 [inline] RSP: ffff8801cfa1f9a0
RIP: bdev_logical_block_size include/linux/blkdev.h:1434 [inline] RSP: ffff8801cfa1f9a0
RIP: bd_set_size+0x5f/0x330 fs/block_dev.c:1395 RSP: ffff8801cfa1f9a0
---[ end trace 6d15bcbb410cc37a ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..