general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15439 Comm: syz-executor1 Not tainted 4.19.0+ #80
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:loop_validate_file+0x247/0x470 drivers/block/loop.c:665
Code: 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 2e 02 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b8 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 03 02 00 00 4d 8b a4 24 b8 01 00 00 4c 89 e0 48
kobject: 'loop2' (0000000017c0b862): kobject_uevent_env
RSP: 0018:ffff88018a68f8f8 EFLAGS: 00010202
RAX: 0000000000000037 RBX: dffffc0000000000 RCX: ffffc90003ef8000
RDX: 000000000000009e RSI: ffffffff844b35a7 RDI: 00000000000001b8
RBP: ffff88018a68f918 R08: ffff8801bb25c040 R09: ffffed003b5c5b57
R10: 0000000000000002 R11: ffff8801dae2dabb R12: 0000000000000000
R13: ffff8801d4bb8300 R14: 0000000000000002 R15: ffff8801d4bb8300
FS:  00007f9e88a10700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2be23000 CR3: 00000001c1ba4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 loop_set_fd drivers/block/loop.c:927 [inline]
 lo_ioctl+0x55c/0x1d80 drivers/block/loop.c:1410
kobject: 'loop2' (0000000017c0b862): fill_kobj_path: path = '/devices/virtual/block/loop2'
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x9ac/0x2010 block/ioctl.c:601
kobject: 'loop0' (00000000e06f1011): kobject_uevent_env
 block_ioctl+0xee/0x130 fs/block_dev.c:1883
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685
kobject: 'loop0' (00000000e06f1011): fill_kobj_path: path = '/devices/virtual/block/loop0'
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702
kobject: 'loop5' (00000000a4b7f1ef): kobject_uevent_env
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl fs/ioctl.c:707 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'loop5' (00000000a4b7f1ef): fill_kobj_path: path = '/devices/virtual/block/loop5'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
ISOFS: Unable to identify CD-ROM format.
RSP: 002b:00007f9e88a0fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9e88a106d4
R13: 00000000004c0459 R14: 00000000004d0600 R15: 00000000ffffffff
Modules linked in:
---[ end trace d3b0274f817237a4 ]---
kobject: 'loop0' (00000000e06f1011): kobject_uevent_env
RIP: 0010:loop_validate_file+0x247/0x470 drivers/block/loop.c:665
Code: 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 2e 02 00 00 4d 8b a4 24 f0 00 00 00 49 8d bc 24 b8 01 00 00 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 03 02 00 00 4d 8b a4 24 b8 01 00 00 4c 89 e0 48
RSP: 0018:ffff88018a68f8f8 EFLAGS: 00010202
kobject: 'loop3' (0000000040be4a5a): kobject_uevent_env
RAX: 0000000000000037 RBX: dffffc0000000000 RCX: ffffc90003ef8000
RDX: 000000000000009e RSI: ffffffff844b35a7 RDI: 00000000000001b8
RBP: ffff88018a68f918 R08: ffff8801bb25c040 R09: ffffed003b5c5b57
R10: 0000000000000002 R11: ffff8801dae2dabb R12: 0000000000000000
R13: ffff8801d4bb8300 R14: 0000000000000002 R15: ffff8801d4bb8300
kobject: 'loop3' (0000000040be4a5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
FS:  00007f9e88a10700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000018b9b40 CR3: 00000001c1ba4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400