syzbot

loop0: detected capacity change from 0 to 512
------------[ cut here ]------------
EA inode 11 i_nlink=2
WARNING: CPU: 0 PID: 4446 at fs/ext4/xattr.c:1022 ext4_xattr_inode_update_ref+0x4be/0x520 fs/ext4/xattr.c:1020
Modules linked in:
CPU: 0 PID: 4446 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ext4_xattr_inode_update_ref+0x4be/0x520 fs/ext4/xattr.c:1020
Code: 8d 7d 40 4c 89 f8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ff e8 93 ec 9c ff 49 8b 37 48 c7 c7 40 92 80 8a 89 da e8 72 bd 18 ff <0f> 0b 49 be 00 00 00 00 00 fc ff df 4c 8b 6c 24 10 4c 8b 7c 24 08
RSP: 0018:ffffc90004117200 EFLAGS: 00010246
RAX: 503abb6dc15e0900 RBX: 0000000000000002 RCX: ffff88807abf8000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc900041172e8 R08: dffffc0000000000 R09: ffffed10171e4f3c
R10: ffffed10171e4f3c R11: 1ffff110171e4f3b R12: ffffc90004117260
R13: ffff888059c816c0 R14: dffffc0000000000 R15: ffff888059c81700
FS:  000055556c508500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7c2e65e000 CR3: 00000000307ec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1045 [inline]
 ext4_xattr_set_entry+0xb33/0x1e90 fs/ext4/xattr.c:1687
 ext4_xattr_ibody_set+0x250/0x690 fs/ext4/xattr.c:2234
 ext4_xattr_move_to_block fs/ext4/xattr.c:2637 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2705 [inline]
 ext4_expand_extra_isize_ea+0x10e5/0x19b0 fs/ext4/xattr.c:2797
 __ext4_expand_extra_isize+0x301/0x3e0 fs/ext4/inode.c:5979
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6022 [inline]
 __ext4_mark_inode_dirty+0x47f/0x770 fs/ext4/inode.c:6100
 ext4_evict_inode+0xa73/0x1100 fs/ext4/inode.c:279
 evict+0x485/0x870 fs/inode.c:705
 ext4_orphan_cleanup+0xbd3/0x1400 fs/ext4/orphan.c:472
 __ext4_fill_super fs/ext4/super.c:5556 [inline]
 ext4_fill_super+0x7738/0x7cd0 fs/ext4/super.c:5687
 get_tree_bdev+0x3f1/0x610 fs/super.c:1366
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x24a/0xa40 fs/namespace.c:3078
 do_mount fs/namespace.c:3421 [inline]
 __do_sys_mount fs/namespace.c:3629 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3606
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7a1e990eea
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:00007ffc508008b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc50800940 RCX: 00007f7a1e990eea
RDX: 0000200000000180 RSI: 00002000000001c0 RDI: 00007ffc50800900
RBP: 0000200000000180 R08: 00007ffc50800940 R09: 0000000001800700
R10: 0000000001800700 R11: 0000000000000246 R12: 00002000000001c0
R13: 00007ffc50800900 R14: 000000000000047c R15: 00002000000004c0
 </TASK>