EXT4-fs warning (device loop1): ext4_xattr_inode_create:1437: refuse to create EA inode when umounting
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4257 at fs/ext4/xattr.c:1438 ext4_xattr_inode_create fs/ext4/xattr.c:1436 [inline]
WARNING: CPU: 0 PID: 4257 at fs/ext4/xattr.c:1438 ext4_xattr_inode_lookup_create+0xbb7/0x1d10 fs/ext4/xattr.c:1556
Modules linked in:
CPU: 0 PID: 4257 Comm: syz-executor Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_xattr_inode_create fs/ext4/xattr.c:1438 [inline]
RIP: 0010:ext4_xattr_inode_lookup_create+0xbb7/0x1d10 fs/ext4/xattr.c:1556
Code: 4c 8b 7c 24 20 e9 5d 04 00 00 e8 04 6d 4c ff 48 89 df 48 c7 c6 9a 4e 1d 8c ba 9d 05 00 00 48 c7 c1 00 c0 80 8a e8 09 49 fc ff <0f> 0b 49 c7 c6 ea ff ff ff 48 8b 5c 24 18 43 80 3c 2c 00 74 08 48
RSP: 0018:ffffc90003d573e0 EFLAGS: 00010246
RAX: 4357aabda851a000 RBX: ffff888079c6a000 RCX: 4357aabda851a000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003d575b0 R08: dffffc0000000000 R09: fffff520007aadf5
R10: fffff520007aadf5 R11: 1ffff920007aadf4 R12: 1ffff1100e8f47e1
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880747a3ee0
FS:  00005555879ed500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f97b58e56c0 CR3: 000000005c38b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_xattr_block_set+0x23a/0x32a0 fs/ext4/xattr.c:1876
 ext4_xattr_move_to_block fs/ext4/xattr.c:2625 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2700 [inline]
 ext4_expand_extra_isize_ea+0x109b/0x19b0 fs/ext4/xattr.c:2792
 __ext4_expand_extra_isize+0x301/0x3e0 fs/ext4/inode.c:5965
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6008 [inline]
 __ext4_mark_inode_dirty+0x47f/0x770 fs/ext4/inode.c:6086
 ext4_dirty_inode+0xbf/0x100 fs/ext4/inode.c:6118
 __mark_inode_dirty+0x322/0xf40 fs/fs-writeback.c:2433
 mark_inode_dirty_sync include/linux/fs.h:2551 [inline]
 iput+0x1e1/0x980 fs/inode.c:1857
 __dentry_kill+0x431/0x650 fs/dcache.c:611
 shrink_dentry_list+0x39b/0x6a0 fs/dcache.c:1206
 shrink_dcache_parent+0xa8/0x3c0 fs/dcache.c:-1
 do_one_tree+0x23/0xe0 fs/dcache.c:1687
 shrink_dcache_for_umount+0x65/0x110 fs/dcache.c:1704
 generic_shutdown_super+0x63/0x340 fs/super.c:473
 kill_block_super+0x7c/0xe0 fs/super.c:1470
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x463/0x4f0 fs/namespace.c:1182
 task_work_run+0x1ca/0x250 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f10ff18fc57
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda666ca88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f10ff210925 RCX: 00007f10ff18fc57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda666cb40
RBP: 00007ffda666cb40 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda666dbd0
R13: 00007f10ff210925 R14: 0000000000015f54 R15: 00007ffda666dc10
 </TASK>