loop0: detected capacity change from 0 to 512
EXT4-fs error (device loop0): ext4_validate_block_bitmap:441: comm syz.0.0: bg 0: block 127: padding at end of block bitmap is not set
------------[ cut here ]------------
EA inode 11 i_nlink=2
WARNING: CPU: 0 PID: 5369 at fs/ext4/xattr.c:1053 ext4_xattr_inode_update_ref+0x534/0x5d0 fs/ext4/xattr.c:1051
Modules linked in:
CPU: 0 UID: 0 PID: 5369 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ext4_xattr_inode_update_ref+0x534/0x5d0 fs/ext4/xattr.c:1051
Code: 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 0f 85 86 00 00 00 41 8b 14 24 48 c7 c7 20 f5 9f 8b 4c 89 fe e8 6d ce fb fe 90 <0f> 0b 90 90 48 bb 00 00 00 00 00 fc ff df e9 bb fd ff ff e8 e4 9a
RSP: 0018:ffffc9000d33f2e0 EFLAGS: 00010246
RAX: e098caef46c60800 RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc9000e22a000 RSI: 0000000000009397 RDI: 0000000000009398
RBP: ffffc9000d33f3d0 R08: ffff88801fc24253 R09: 1ffff11003f8484a
R10: dffffc0000000000 R11: ffffed1003f8484b R12: ffff888052149600
R13: 1ffff1100a4292c0 R14: 00000000ffffffff R15: 000000000000000b
FS:  00007fb923c1b6c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8335cb89c0 CR3: 0000000043f1f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1076 [inline]
 ext4_xattr_inode_dec_ref_all+0x867/0xda0 fs/ext4/xattr.c:1218
 ext4_xattr_delete_inode+0xa4c/0xc10 fs/ext4/xattr.c:2942
 ext4_evict_inode+0xac9/0xee0 fs/ext4/inode.c:271
 evict+0x504/0x9c0 fs/inode.c:810
 ext4_orphan_cleanup+0xc20/0x1460 fs/ext4/orphan.c:474
 __ext4_fill_super fs/ext4/super.c:5609 [inline]
 ext4_fill_super+0x57df/0x6090 fs/ext4/super.c:5728
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1815
 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808
 do_mount fs/namespace.c:4136 [inline]
 __do_sys_mount fs/namespace.c:4347 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4324
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb922d9034a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb923c1ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb923c1aef0 RCX: 00007fb922d9034a
RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007fb923c1aeb0
RBP: 0000200000000180 R08: 00007fb923c1aef0 R09: 0000000000800700
R10: 0000000000800700 R11: 0000000000000246 R12: 00002000000001c0
R13: 00007fb923c1aeb0 R14: 0000000000000473 R15: 0000200000000680
 </TASK>