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 532. Fsck?
REISERFS (device loop0): Remounting filesystem read-only
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: 4821 Comm: syz.0.15 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
pstate: 82400005 (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 : direct2indirect+0x5ec/0xe9c fs/reiserfs/tail_conversion.c:119
lr : tp_item_head fs/reiserfs/reiserfs.h:2226 [inline]
lr : direct2indirect+0x5b4/0xe9c fs/reiserfs/tail_conversion.c:119
sp : ffff80001fa56fa0
x29: ffff80001fa570e0 x28: 0000000000000028 x27: ffff80001fa57470
x26: 0000000100000fff x25: 0000000000000000 x24: dfff800000000000
x23: ffff80001fa57458 x22: ffff0000e2a98ed0 x21: ffff80001fa57450
x20: 0000000000000000 x19: ffff0000e2a0d750 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008c27024 x15: 00000000fffffffe
x14: 0000000000ff0100 x13: ffffffffffffffff x12: ffff8000169f8000
x11: ff80800008c31374 x10: 0000000000000000 x9 : ffff800008c31374
x8 : 0000000000000005 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fa56278 x4 : ffff80001449f5e0 x3 : ffff8000089dfcbc
x2 : 0000000000000001 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]
 direct2indirect+0x5ec/0xe9c fs/reiserfs/tail_conversion.c:119
 reiserfs_get_block+0x3174/0x36a8 fs/reiserfs/inode.c:957
 __block_write_begin_int+0x3d4/0x14e0 fs/buffer.c:2012
 __block_write_begin+0x40/0x54 fs/buffer.c:2062
 reiserfs_write_begin+0x3c4/0x650 fs/reiserfs/inode.c:2790
 generic_perform_write+0x20c/0x490 mm/filemap.c:3785
 __generic_file_write_iter+0x23c/0x44c mm/filemap.c:3912
 generic_file_write_iter+0xb0/0x1b4 mm/filemap.c:3944
 call_write_iter include/linux/fs.h:2179 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x590/0xa64 fs/read_write.c:594
 ksys_write+0x12c/0x228 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x28c arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d4 arch/arm64/kernel/entry-common.c:608
 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: 350013e8 9100a29c b9800374 d343ff88 (38786908) 
---[ end trace 8a1983c65f7c50f1 ]---
----------------
Code disassembly (best guess):
   0:	350013e8 	cbnz	w8, 0x27c
   4:	9100a29c 	add	x28, x20, #0x28
   8:	b9800374 	ldrsw	x20, [x27]
   c:	d343ff88 	lsr	x8, x28, #3
* 10:	38786908 	ldrb	w8, [x8, x24] <-- trapping instruction