------------[ cut here ]------------
EA inode 11 i_nlink=0
WARNING: fs/ext4/xattr.c:1059 at ext4_xattr_inode_update_ref+0x4c9/0x5a0 fs/ext4/xattr.c:1057, CPU#0: syz.8.3385/15776
Modules linked in:
CPU: 0 UID: 0 PID: 15776 Comm: syz.8.3385 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:ext4_xattr_inode_update_ref+0x511/0x5a0 fs/ext4/xattr.c:1057
Code: 74 08 4c 89 ef e8 9f 7b 96 ff 4d 8b 6d 00 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 06 84 c0 75 77 41 8b 17 4c 89 e7 4c 89 ee <67> 48 0f b9 3a 4c 8b 6c 24 28 e9 59 fe ff ff e8 2b 34 16 09 44 89
RSP: 0018:ffffc900037b7240 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 000000000000000b RDI: ffffffff90386fe0
RBP: ffffc900037b7330 R08: ffff8880aba13e97 R09: 1ffff110157427d2
R10: dffffc0000000000 R11: ffffed10157427d3 R12: ffffffff90386fe0
R13: 000000000000000b R14: 1ffff1101574279e R15: ffff8880aba13cf0
FS:  00007fc7def2d6c0(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000005b000 CR3: 000000003c412000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ext4_xattr_inode_dec_ref fs/ext4/xattr.c:1082 [inline]
 ext4_xattr_inode_dec_ref_all+0x8cb/0xe40 fs/ext4/xattr.c:1228
 ext4_xattr_delete_inode+0xb45/0xd10 fs/ext4/xattr.c:2950
 ext4_evict_inode+0xc4e/0x10e0 fs/ext4/inode.c:284
 evict+0x61e/0xb10 fs/inode.c:841
 ext4_orphan_cleanup+0xc38/0x1470 fs/ext4/orphan.c:472
 __ext4_fill_super fs/ext4/super.c:5695 [inline]
 ext4_fill_super+0x5a19/0x6330 fs/ext4/super.c:5818
 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1694
 vfs_get_tree+0x92/0x2a0 fs/super.c:1754
 fc_mount fs/namespace.c:1193 [inline]
 do_new_mount_fc fs/namespace.c:3758 [inline]
 do_new_mount+0x341/0xd30 fs/namespace.c:3834
 do_mount fs/namespace.c:4167 [inline]
 __do_sys_mount fs/namespace.c:4399 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4376
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc7ddf9da8a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc7def2ce58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc7def2cee0 RCX: 00007fc7ddf9da8a
RDX: 00002000000001c0 RSI: 0000200000000000 RDI: 00007fc7def2cea0
RBP: 00002000000001c0 R08: 00007fc7def2cee0 R09: 0000000000800744
R10: 0000000000800744 R11: 0000000000000246 R12: 0000200000000000
R13: 00007fc7def2cea0 R14: 0000000000000478 R15: 0000200000000300
 </TASK>
----------------
Code disassembly (best guess):
   0:	74 08                	je     0xa
   2:	4c 89 ef             	mov    %r13,%rdi
   5:	e8 9f 7b 96 ff       	call   0xff967ba9
   a:	4d 8b 6d 00          	mov    0x0(%r13),%r13
   e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  15:	fc ff df
  18:	41 0f b6 04 06       	movzbl (%r14,%rax,1),%eax
  1d:	84 c0                	test   %al,%al
  1f:	75 77                	jne    0x98
  21:	41 8b 17             	mov    (%r15),%edx
  24:	4c 89 e7             	mov    %r12,%rdi
  27:	4c 89 ee             	mov    %r13,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	4c 8b 6c 24 28       	mov    0x28(%rsp),%r13
  34:	e9 59 fe ff ff       	jmp    0xfffffe92
  39:	e8 2b 34 16 09       	call   0x9163469
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89