REISERFS (device loop0): Using tea hash to sort names
REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
===================================================================
Unable to handle kernel paging request at virtual address dfff800000000048
KASAN: null-ptr-deref in range [0x0000000000000240-0x0000000000000247]
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
[dfff800000000048] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4515 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : scnprintf_block_head fs/reiserfs/prints.c:152 [inline]
pc : prepare_error_buf+0x1070/0x18c0 fs/reiserfs/prints.c:245
lr : prepare_error_buf+0x7f8/0x18c0 fs/reiserfs/prints.c:246
sp : ffff8000215b6d20
x29: ffff8000215b6ea0 x28: ffff80001c747bf9 x27: ffff80001c748ae0
x26: 000000000000007a x25: dfff800000000000 x24: ffff80001c748af9
x23: ffff8000215b6f40 x22: ffff8000215b6da0 x21: 0000000000000241
x20: ffff8000156ed4c0 x19: ffff7000042b6db4 x18: 0000000000000000
x17: 3d3d3d3d3d3d3d3d x16: ffff8000082f2858 x15: 0000000000000000
x14: 000000000000007a x13: 0000000000ff0100 x12: ffff8000156ed560
x11: ff00800008ccf0cc x10: 0000000000000000 x9 : ffff800008ccf0cc
x8 : 0000000000000048 x7 : 20736e6961746e6f x6 : 6961746e6f632029
x5 : ffff80001c747bf9 x4 : ffff80001c748af9 x3 : ffff800011a94a14
x2 : 000000000000000b x1 : 00000000ffffffc8 x0 : 00000000fffffff9
Call trace:
 scnprintf_block_head fs/reiserfs/prints.c:152 [inline]
 prepare_error_buf+0x1070/0x18c0 fs/reiserfs/prints.c:245
 reiserfs_printk+0xd0/0x128 fs/reiserfs/prints.c:312
 print_leaf fs/reiserfs/prints.c:496 [inline]
 print_block+0x320/0x14e0 fs/reiserfs/prints.c:626
 reiserfs_cut_from_item+0x1508/0x1a34 fs/reiserfs/stree.c:1726
 reiserfs_do_truncate+0x728/0xfd0 fs/reiserfs/stree.c:1973
 reiserfs_truncate_file+0x3a4/0xb04 fs/reiserfs/inode.c:2310
 reiserfs_file_release+0x6b8/0x8a0 fs/reiserfs/file.c:109
 __fput+0x1b4/0x7b0 fs/file_table.c:320
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x1f4/0x280 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1151
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 97f09756 f94002a8 9100a115 d343fea8 (38796908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97f09756 	bl	0xffffffffffc25d58
   4:	f94002a8 	ldr	x8, [x21]
   8:	9100a115 	add	x21, x8, #0x28
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	38796908 	ldrb	w8, [x8, x25] <-- trapping instruction