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: 1 PID: 5089 Comm: syz-executor4 Not tainted 4.13.0+ #79
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c71121c0 task.stack: ffff88019a6d0000
RIP: 0010:loop_set_fd drivers/block/loop.c:885 [inline]
RIP: 0010:lo_ioctl+0x678/0x1b80 drivers/block/loop.c:1353
RSP: 0018:ffff88019a6d7aa0 EFLAGS: 00010202
RAX: 0000000000010000 RBX: dffffc0000000000 RCX: ffffc900031e1000
RDX: 000000000000003b RSI: ffffffff83537338 RDI: 00000000000001d8
RBP: ffff88019a6d7b18 R08: ffffffff85b380a0 R09: 1ffff100334daefd
R10: ffff8801c71121c0 R11: 0000000000000001 R12: 0000000000000000
R13: ffff8801d4811680 R14: ffff8801cf99b7c0 R15: ffff8801d48117d8
FS: 00007ff250895700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000208dd000 CR3: 00000001d17a5000 CR4: 00000000001426e0
Call Trace:
__blkdev_driver_ioctl block/ioctl.c:297 [inline]
blkdev_ioctl+0xc07/0x1de0 block/ioctl.c:594
block_ioctl+0xea/0x130 fs/block_dev.c:1868
vfs_ioctl fs/ioctl.c:45 [inline]
do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:685
SYSC_ioctl fs/ioctl.c:700 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x451e59
RSP: 002b:00007ff250894c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 0000000000451e59
RDX: 0000000000000006 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b7d9c
R13: 00000000ffffffff R14: 0000000020e5a000 R15: 0000000000001000
Code: 00 00 00 48 89 fa 48 c1 ea 03 80 3c 1a 00 0f 85 81 14 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 d8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 1a 00 0f 85 56 14 00 00 4d 8b a4 24 d8 01 00 00 4c 89 e2
RIP: loop_set_fd drivers/block/loop.c:885 [inline] RSP: ffff88019a6d7aa0
RIP: lo_ioctl+0x678/0x1b80 drivers/block/loop.c:1353 RSP: ffff88019a6d7aa0
---[ end trace 19781e570ed09026 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
(ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..