loop0: detected capacity change from 0 to 512
EXT4-fs (loop0): orphan cleanup on readonly fs
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5365 at fs/ext4/xattr.c:1906 ext4_xattr_block_set+0x25b5/0x2ac0 fs/ext4/xattr.c:1906
Modules linked in:
CPU: 0 UID: 0 PID: 5365 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_block_set+0x25b5/0x2ac0 fs/ext4/xattr.c:1906
Code: 00 00 00 e8 ad 9f 9d ff 3e 80 63 28 fd eb 28 e8 d1 ab 38 ff 31 db 48 c7 44 24 20 00 00 00 00 e9 88 f1 ff ff e8 bc ab 38 ff 90 <0f> 0b 90 e9 0e dc ff ff e8 ae ab 38 ff 48 8b 5c 24 10 4c 8b 74 24
RSP: 0018:ffffc9000d2bf220 EFLAGS: 00010287
RAX: ffffffff82872154 RBX: ffffc9000d2bf548 RCX: 0000000000100000
RDX: ffffc9000dbba000 RSI: 000000000000c695 RDI: 000000000000c696
RBP: ffffc9000d2bf408 R08: ffff88804d1d0020 R09: ffff88804d1d0020
R10: ffff88804d1d0400 R11: ffff88804d1d0000 R12: 0000000000000000
R13: 1ffff92001a57eaa R14: 1ffff92001a57ea9 R15: ffffc9000d2bf550
FS:  00007fb4c79f26c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7c66f909c0 CR3: 000000004384d000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ext4_xattr_move_to_block fs/ext4/xattr.c:2659 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2734 [inline]
 ext4_expand_extra_isize_ea+0x12d5/0x1ea0 fs/ext4/xattr.c:2822
 __ext4_expand_extra_isize+0x30d/0x400 fs/ext4/inode.c:6385
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6428 [inline]
 __ext4_mark_inode_dirty+0x46c/0x700 fs/ext4/inode.c:6506
 ext4_evict_inode+0x80d/0xee0 fs/ext4/inode.c:254
 evict+0x501/0x9c0 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+0x40b/0x4d0 fs/super.c:1692
 vfs_get_tree+0x92/0x2b0 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: 0033:0x7fb4c6b9034a
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:00007fb4c79f1e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb4c79f1ef0 RCX: 00007fb4c6b9034a
RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007fb4c79f1eb0
RBP: 0000200000000180 R08: 00007fb4c79f1ef0 R09: 000000000080078b
R10: 000000000080078b R11: 0000000000000246 R12: 00002000000001c0
R13: 00007fb4c79f1eb0 R14: 0000000000000473 R15: 0000200000000680
 </TASK>