BUG: unable to handle page fault for address: fffff52002e00000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 21ffee067 P4D 21ffee067 PUD aa11c067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9561 Comm: syz-executor.0 Not tainted 5.4.0-next-20191129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:xfs_sb_read_verify+0xf0/0x540 fs/xfs/libxfs/xfs_sb.c:691
Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 18 04 00 00 4d 8b ac 24 30 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a7 03 00 00 41 8b 75 00 bf 58
RSP: 0018:ffffc90004e77918 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: 1ffff920009cef26 RCX: ffffc90001f29000
RDX: 1ffff92002e00000 RSI: ffffffff82a97e3b RDI: ffff888090c1eda0
RBP: ffffc90004e77af8 R08: ffff888054c44140 R09: ffffed1015ce7045
R10: ffffed1015ce7044 R11: ffff8880ae738223 R12: ffff888090c1ec80
R13: ffffc90017000000 R14: ffffc90004e77ad0 R15: ffff88805ab02000
FS:  00007f3b0e295700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff52002e00000 CR3: 0000000094257000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 xfs_buf_ioend+0x3f9/0xde0 fs/xfs/xfs_buf.c:1162
 __xfs_buf_submit+0x391/0xe70 fs/xfs/xfs_buf.c:1485
 xfs_buf_submit fs/xfs/xfs_buf.h:268 [inline]
 xfs_buf_read_uncached+0x164/0x550 fs/xfs/xfs_buf.c:897
 xfs_readsb+0x2c6/0x530 fs/xfs/xfs_mount.c:298
 xfs_fc_fill_super+0x3e7/0x11c0 fs/xfs/xfs_super.c:1415
 get_tree_bdev+0x414/0x650 fs/super.c:1340
 xfs_fc_get_tree+0x1d/0x30 fs/xfs/xfs_super.c:1550
 vfs_get_tree+0x8e/0x300 fs/super.c:1545
 do_new_mount fs/namespace.c:2822 [inline]
 do_mount+0x135a/0x1b50 fs/namespace.c:3142
 ksys_mount+0xdb/0x150 fs/namespace.c:3351
 __do_sys_mount fs/namespace.c:3365 [inline]
 __se_sys_mount fs/namespace.c:3362 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3362
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45d0ca
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 4d 8c fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 2a 8c fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f3b0e294a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3b0e294b40 RCX: 000000000045d0ca
RDX: 00007f3b0e294ae0 RSI: 0000000020000180 RDI: 00007f3b0e294b00
RBP: 0000000000000002 R08: 00007f3b0e294b40 R09: 00007f3b0e294ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 00000000004ca26c R14: 00000000004e28a8 R15: 00000000ffffffff
Modules linked in:
CR2: fffff52002e00000
---[ end trace ca908d617cef0e4c ]---
RIP: 0010:xfs_sb_read_verify+0xf0/0x540 fs/xfs/libxfs/xfs_sb.c:691
Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 18 04 00 00 4d 8b ac 24 30 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a7 03 00 00 41 8b 75 00 bf 58
RSP: 0018:ffffc90004e77918 EFLAGS: 00010a06
RAX: dffffc0000000000 RBX: 1ffff920009cef26 RCX: ffffc90001f29000
RDX: 1ffff92002e00000 RSI: ffffffff82a97e3b RDI: ffff888090c1eda0
RBP: ffffc90004e77af8 R08: ffff888054c44140 R09: ffffed1015ce7045
R10: ffffed1015ce7044 R11: ffff8880ae738223 R12: ffff888090c1ec80
R13: ffffc90017000000 R14: ffffc90004e77ad0 R15: ffff88805ab02000
FS:  00007f3b0e295700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff52002e00000 CR3: 0000000094257000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400