REISERFS warning: reiserfs-5093 is_leaf: item entry count seems wrong *3.5*[2 1 0(1) DIR], item_len 35, item_location 4029, free_space(entry_count) 2
REISERFS error (device loop0): vs-5150 search_by_key: invalid format found in block 533. 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: 4456 Comm: syz-executor.0 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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+0x12c/0x1740 fs/reiserfs/stree.c:1050
lr : tp_item_head fs/reiserfs/reiserfs.h:2226 [inline]
lr : prepare_for_delete_or_cut+0xf0/0x1740 fs/reiserfs/stree.c:1050
sp : ffff80001f446fa0
x29: ffff80001f4470c0 x28: 1ffff00003e88ee0 x27: dfff800000000000
x26: ffff80001f447700 x25: ffff80001f447708 x24: ffff700003e88e08
x23: 0000000000000fcb x22: 0000000000000000 x21: 0000000000000028
x20: 0000000000000000 x19: ffff80001f447720 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c16ba0 x15: 00000000fffffffe
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008c187f4
x8 : 0000000000000005 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff80001f4471fc x4 : ffff80001f4471f8 x3 : ffff80001f4477a0
x2 : ffff80001f447700 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+0x12c/0x1740 fs/reiserfs/stree.c:1050
 reiserfs_cut_from_item+0x1ec/0x1a44 fs/reiserfs/stree.c:1682
 reiserfs_do_truncate+0x738/0x1020 fs/reiserfs/stree.c:1973
 reiserfs_truncate_file+0x328/0x6e4 fs/reiserfs/inode.c:2318
 reiserfs_file_release+0x710/0x894 fs/reiserfs/file.c:109
 __fput+0x1c0/0x7f8 fs/file_table.c:311
 ____fput+0x20/0x30 fs/file_table.c:339
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949
 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+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 35007a08 9100a295 b9800274 d343fea8 (387b6908) 
---[ end trace 1de66c5891061d3d ]---
----------------
Code disassembly (best guess):
   0:	35007a08 	cbnz	w8, 0xf40
   4:	9100a295 	add	x21, x20, #0x28
   8:	b9800274 	ldrsw	x20, [x19]
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	387b6908 	ldrb	w8, [x8, x27] <-- trapping instruction