jffs2: nextblock 0x00008000, expected at 0000900c
jffs2: argh. node added in wrong place at 0x0000903c(2)
jffs2: nextblock 0x00008000, expected at 0000900c
------------[ cut here ]------------
kernel BUG at fs/jffs2/xattr.c:411!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 6518 Comm: syz-executor.1 Not tainted 6.9.0-rc3-syzkaller-00399-g72374d71c315 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:unrefer_xattr_datum.part.0+0x1ac/0x200 fs/jffs2/xattr.c:411
Code: e6 e8 c8 5f af fe 45 84 e4 79 19 e8 3e 65 af fe 48 89 df e8 66 93 fc ff eb c2 e8 1f e1 0b ff e9 a5 fe ff ff e8 25 65 af fe 90 <0f> 0b e8 9d e1 0b ff e9 bf fe ff ff 4c 89 ef e8 90 e1 0b ff e9 e7
RSP: 0018:ffffc9000791f7d8 EFLAGS: 00010287
RAX: 000000000000960f RBX: ffff88805aea3080 RCX: ffffc9002704a000
RDX: 0000000000040000 RSI: ffffffff82def06b RDI: 0000000000000001
RBP: ffff8880639fa000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000041 R11: 0000000000000005 R12: 0000000000000041
R13: ffff8880639fa278 R14: ffff8880467f4000 R15: ffff8880639fa000
FS:  0000000000000000(0000) GS:ffff88802c200000(0063) knlGS:00000000f5f45b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000030f4a000 CR3: 0000000063a9c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unrefer_xattr_datum fs/jffs2/xattr.c:594 [inline]
 delete_xattr_ref+0x19a/0x1f0 fs/jffs2/xattr.c:593
 do_jffs2_setxattr+0xdab/0x16c0 fs/jffs2/xattr.c:1203
 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:200
 __vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:234
 __vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295
 vfs_setxattr+0x146/0x350 fs/xattr.c:321
 do_setxattr+0x146/0x170 fs/xattr.c:629
 setxattr+0x15d/0x180 fs/xattr.c:652
 path_setxattr+0x179/0x1e0 fs/xattr.c:671
 __do_sys_lsetxattr fs/xattr.c:694 [inline]
 __se_sys_lsetxattr fs/xattr.c:690 [inline]
 __ia32_sys_lsetxattr+0xbd/0x160 fs/xattr.c:690
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x75/0x120 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:346
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7353579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f5f455ac EFLAGS: 00000292 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 0000000020000980 RCX: 00000000200009c0
RDX: 0000000020000a80 RSI: 0000000000001001 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:unrefer_xattr_datum.part.0+0x1ac/0x200 fs/jffs2/xattr.c:411
Code: e6 e8 c8 5f af fe 45 84 e4 79 19 e8 3e 65 af fe 48 89 df e8 66 93 fc ff eb c2 e8 1f e1 0b ff e9 a5 fe ff ff e8 25 65 af fe 90 <0f> 0b e8 9d e1 0b ff e9 bf fe ff ff 4c 89 ef e8 90 e1 0b ff e9 e7
RSP: 0018:ffffc9000791f7d8 EFLAGS: 00010287
RAX: 000000000000960f RBX: ffff88805aea3080 RCX: ffffc9002704a000
RDX: 0000000000040000 RSI: ffffffff82def06b RDI: 0000000000000001
RBP: ffff8880639fa000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000041 R11: 0000000000000005 R12: 0000000000000041
R13: ffff8880639fa278 R14: ffff8880467f4000 R15: ffff8880639fa000
FS:  0000000000000000(0000) GS:ffff88802c200000(0063) knlGS:00000000f5f45b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000030f4a000 CR3: 0000000063a9c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi