REISERFS warning: reiserfs-5093 is_leaf: item entry count seems wrong *3.5*[2 4106499 0(1) DIR], item_len 35, item_location 3800, free_space(entry_count) 2
REISERFS error (device loop4): vs-5150 search_by_key: invalid format found in block 553. Fsck?
Unable to handle kernel paging request at virtual address dfff800000000005
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000005] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4601 Comm: syz.4.110 Not tainted 5.15.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : reiserfs_node_data fs/reiserfs/reiserfs.h:2184 [inline]
pc : item_head fs/reiserfs/reiserfs.h:2200 [inline]
pc : tp_item_head fs/reiserfs/reiserfs.h:2226 [inline]
pc : prepare_for_delete_or_cut+0x130/0x1a34 fs/reiserfs/stree.c:1050
lr : tp_item_head fs/reiserfs/reiserfs.h:2226 [inline]
lr : prepare_for_delete_or_cut+0xf0/0x1a34 fs/reiserfs/stree.c:1050
sp : ffff800020606e40
x29: ffff800020606f80 x28: 1ffff000040c0ec8 x27: ffff7000040c0de0
x26: ffff800020607648 x25: ffff800020607640 x24: dfff800000000000
x23: dfff800000000000 x22: ffff8000206076e0 x21: 0000000000000000
x20: 0000000000000028 x19: ffff800020607660 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008ce5ca8 x15: 00000000fffffffe
x14: ffff0000dabc9b40 x13: 0000000000ff0100 x12: ffff800020606f00
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000dabc9b40
x8 : 0000000000000005 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff8000206074b0 x4 : ffff8000206074c0 x3 : ffff8000206076e0
x2 : ffff800020607640 x1 : 0000000000000001 x0 : 0000000000000008
Call trace:
 reiserfs_node_data fs/reiserfs/reiserfs.h:2184 [inline]
 item_head fs/reiserfs/reiserfs.h:2200 [inline]
 tp_item_head fs/reiserfs/reiserfs.h:2226 [inline]
 prepare_for_delete_or_cut+0x130/0x1a34 fs/reiserfs/stree.c:1050
 reiserfs_cut_from_item+0x2ac/0x1c84 fs/reiserfs/stree.c:1682
 reiserfs_do_truncate+0x89c/0x11c8 fs/reiserfs/stree.c:1973
 reiserfs_truncate_file+0x3ac/0x6f0 fs/reiserfs/inode.c:2318
 reiserfs_file_release+0x710/0x884 fs/reiserfs/file.c:109
 __fput+0x1c4/0x800 fs/file_table.c:280
 ____fput+0x20/0x30 fs/file_table.c:308
 task_work_run+0x130/0x1e4 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 35008b48 9100a294 b9800275 d343fe88 (38786908) 
---[ end trace 240f6d2ead1b0db3 ]---
----------------
Code disassembly (best guess):
   0:	35008b48 	cbnz	w8, 0x1168
   4:	9100a294 	add	x20, x20, #0x28
   8:	b9800275 	ldrsw	x21, [x19]
   c:	d343fe88 	lsr	x8, x20, #3
* 10:	38786908 	ldrb	w8, [x8, x24] <-- trapping instruction