kasan: CONFIG_KASAN_INLINE enabled
Dev loop5: unable to read RDB block 1
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
 loop5: unable to read partition table
CPU: 1 PID: 32297 Comm: syz-executor2 Not tainted 4.20.0-rc5+ #361
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:663
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:ffff8881c1ed78f8 EFLAGS: 00010202
loop5: partition table beyond EOD, truncated
RAX: 0000000000000037 RBX: dffffc0000000000 RCX: ffffc9000e03b000
RDX: 0000000000000074 RSI: ffffffff845d4f77 RDI: 00000000000001b8
RBP: ffff8881c1ed7918 R08: ffff88818292a5c0 R09: ffffed103b5e5b5f
R10: 0000000000000002 R11: ffff8881daf2dafb R12: 0000000000000000
R13: ffff8881d495e1c0 R14: 0000000000000002 R15: ffff8881d495e1c0
FS:  00007f4473477700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
loop_reread_partitions: partition scan of loop5 () failed (rc=-5)
CR2: 0000001b2ee23000 CR3: 0000000185b00000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 loop_set_fd drivers/block/loop.c:925 [inline]
 lo_ioctl+0x55c/0x1d60 drivers/block/loop.c:1408
kobject: 'loop0' (00000000f668d120): kobject_uevent_env
 __blkdev_driver_ioctl block/ioctl.c:303 [inline]
 blkdev_ioctl+0x98e/0x21b0 block/ioctl.c:605
kobject: 'loop4' (000000004b1df2fc): kobject_uevent_env
kobject: 'loop4' (000000004b1df2fc): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (00000000f668d120): fill_kobj_path: path = '/devices/virtual/block/loop0'
 block_ioctl+0xee/0x130 fs/block_dev.c:1883
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696
loop_reread_partitions: partition scan of loop0 () failed (rc=-16)
kobject: 'loop0' (00000000f668d120): kobject_uevent_env
kobject: 'loop0' (00000000f668d120): fill_kobj_path: path = '/devices/virtual/block/loop0'
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 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
RSP: 002b:00007f4473476c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000000000005 RSI: 0000000000004c00 RDI: 0000000000000004
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f44734776d4
R13: 00000000004c0780 R14: 00000000004d1258 R15: 00000000ffffffff
Modules linked in:
IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
---[ end trace 1e753e7251419ad7 ]---
kobject: 'loop0' (00000000f668d120): kobject_uevent_env
RIP: 0010:loop_validate_file+0x247/0x470 drivers/block/loop.c:663
kobject: 'loop0' (00000000f668d120): fill_kobj_path: path = '/devices/virtual/block/loop0'
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
 loop4: p1 < > p2
RSP: 0018:ffff8881c1ed78f8 EFLAGS: 00010202
RAX: 0000000000000037 RBX: dffffc0000000000 RCX: ffffc9000e03b000
IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
RDX: 0000000000000074 RSI: ffffffff845d4f77 RDI: 00000000000001b8
RBP: ffff8881c1ed7918 R08: ffff88818292a5c0 R09: ffffed103b5e5b5f
loop4: partition table partially beyond EOD, truncated
R10: 0000000000000002 R11: ffff8881daf2dafb R12: 0000000000000000
kobject: 'loop0' (00000000f668d120): kobject_uevent_env
R13: ffff8881d495e1c0 R14: 0000000000000002 R15: ffff8881d495e1c0
kobject: 'loop5' (000000009500284e): kobject_uevent_env
FS:  00007f4473477700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
kobject: 'loop5' (000000009500284e): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000f668d120): fill_kobj_path: path = '/devices/virtual/block/loop0'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop4' (000000004b1df2fc): kobject_uevent_env
CR2: 0000000000400200 CR3: 0000000185b00000 CR4: 00000000001406e0
kobject: 'loop1' (00000000f8f2fcfe): kobject_uevent_env
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop5' (000000009500284e): kobject_uevent_env
kobject: 'loop5' (000000009500284e): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000f8f2fcfe): fill_kobj_path: path = '/devices/virtual/block/loop1'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop4' (000000004b1df2fc): fill_kobj_path: path = '/devices/virtual/block/loop4'