|##|   type    |           key           | ilen | free_space | version | loc  |
-------------------------------------------------------------------------------
| 0| *3.6* [2 5 0x0 SD], item_len 44, item_location 4052, free_space(entry_count) 65535 |
	mode | size | nlinks | first direct | mtime
	0100000 |   3840 |  1 | 0 | 1733710783
===================================================================
REISERFS panic (device loop0): PAP-5580 reiserfs_cut_from_item: item to convert does not exist ([2 5 0x1 IND])
------------[ cut here ]------------
kernel BUG at fs/reiserfs/prints.c:390!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4366 Comm: syz.0.15 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390
Code: c7 c1 40 63 9b 8a 48 0f 44 c8 48 0f 44 d8 48 c7 c7 00 64 9b 8a 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 20 c0 51 91 e8 46 8a 10 08 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4
RSP: 0018:ffffc90002e87300 EFLAGS: 00010246
RAX: 000000000000006e RBX: ffffffff8a9b8220 RCX: d9d89ff80ab5b200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90002e873f0 R08: ffffffff81669a1c R09: ffffed10173667a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8a9b8240
R13: ffffc90002e87320 R14: ffffffff8c17fef4 R15: ffff8880772106a8
FS:  000055559287a500(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8cfd95d0a0 CR3: 00000000762ea000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reiserfs_cut_from_item+0x213e/0x2560 fs/reiserfs/stree.c:1729
 reiserfs_do_truncate+0xa12/0x15b0 fs/reiserfs/stree.c:1973
 reiserfs_truncate_file+0x638/0xda0 fs/reiserfs/inode.c:2318
 reiserfs_file_release+0x8c6/0xaa0 fs/reiserfs/file.c:109
 __fput+0x3fe/0x8e0 fs/file_table.c:280
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8cfd7d0b59
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fff97aeccf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000018dc7 RCX: 00007f8cfd7d0b59
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: ffffffffffffffff R08: 0000000000000001 R09: 0000000597aed01f
R10: 00007f8cfd65b000 R11: 0000000000000246 R12: 00007f8cfd960f6c
R13: 0000000000000032 R14: 00007f8cfd962a60 R15: 00007f8cfd960f60
 </TASK>
Modules linked in:
---[ end trace 1cacfa0636d06d19 ]---
RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390
Code: c7 c1 40 63 9b 8a 48 0f 44 c8 48 0f 44 d8 48 c7 c7 00 64 9b 8a 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 20 c0 51 91 e8 46 8a 10 08 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4
RSP: 0018:ffffc90002e87300 EFLAGS: 00010246
RAX: 000000000000006e RBX: ffffffff8a9b8220 RCX: d9d89ff80ab5b200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90002e873f0 R08: ffffffff81669a1c R09: ffffed10173667a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8a9b8240
R13: ffffc90002e87320 R14: ffffffff8c17fef4 R15: ffff8880772106a8
FS:  000055559287a500(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8cfd95d0a0 CR3: 00000000762ea000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400