EXT4-fs warning (device loop6): ext4_xattr_inode_create:1477: refuse to create EA inode when umounting
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6637 at fs/ext4/xattr.c:1478 ext4_xattr_inode_create fs/ext4/xattr.c:1478 [inline]
WARNING: CPU: 1 PID: 6637 at fs/ext4/xattr.c:1478 ext4_xattr_inode_lookup_create+0x9e4/0x1c90 fs/ext4/xattr.c:1596
Modules linked in:
CPU: 1 UID: 0 PID: 6637 Comm: syz-executor Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ext4_xattr_inode_create fs/ext4/xattr.c:1478 [inline]
RIP: 0010:ext4_xattr_inode_lookup_create+0x9e4/0x1c90 fs/ext4/xattr.c:1596
Code: 8b 7c 24 50 e9 d2 03 00 00 e8 78 86 33 ff 4c 89 ff 48 c7 c6 93 06 0b 8e ba c5 05 00 00 48 c7 c1 a0 d0 1e 8c e8 5d 23 fc ff 90 <0f> 0b 90 48 c7 44 24 08 ea ff ff ff 4c 8b 7c 24 50 e9 b7 03 00 00
RSP: 0018:ffffc90005547280 EFLAGS: 00010246
RAX: 3caf82d47a2f3e00 RBX: 0000000000000000 RCX: 3caf82d47a2f3e00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90005547410 R08: ffffffff819ee65c R09: fffffbfff1cfa1a8
R10: dffffc0000000000 R11: fffffbfff1cfa1a8 R12: 1ffff92000aa8e64
R13: dffffc0000000000 R14: ffffc90005547390 R15: ffff888049b7c000
FS:  000055555738f500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffccf064ef8 CR3: 000000002780c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_xattr_block_set+0x272/0x3160 fs/ext4/xattr.c:1916
 ext4_xattr_move_to_block fs/ext4/xattr.c:2670 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2745 [inline]
 ext4_expand_extra_isize_ea+0x12d7/0x1cf0 fs/ext4/xattr.c:2837
 __ext4_expand_extra_isize+0x2fb/0x3e0 fs/ext4/inode.c:5889
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5932 [inline]
 __ext4_mark_inode_dirty+0x524/0x880 fs/ext4/inode.c:6010
 ext4_dirty_inode+0xce/0x110 fs/ext4/inode.c:6042
 __mark_inode_dirty+0x2ee/0xe90 fs/fs-writeback.c:2515
 mark_inode_dirty_sync include/linux/fs.h:2536 [inline]
 iput+0x1f1/0xa50 fs/inode.c:1969
 __dentry_kill+0x20d/0x630 fs/dcache.c:625
 shrink_kill+0xa9/0x2c0 fs/dcache.c:1070
 shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1097
 shrink_dcache_parent+0xcb/0x3b0
 do_one_tree+0x23/0xe0 fs/dcache.c:1560
 shrink_dcache_for_umount+0xb4/0x180 fs/dcache.c:1577
 generic_shutdown_super+0x6a/0x2d0 fs/super.c:620
 kill_block_super+0x44/0x90 fs/super.c:1710
 ext4_kill_sb+0x68/0xa0 fs/ext4/super.c:7368
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1414
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5789b87057
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:00007ffccf0656a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f5789c018f4 RCX: 00007f5789b87057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccf065760
RBP: 00007ffccf065760 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffccf0667e0
R13: 00007f5789c018f4 R14: 00007ffccf066820 R15: 0000000000000062
 </TASK>