Unable to handle kernel paging request at virtual address dfff800000000001
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
[dfff800000000001] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4666 Comm: syz.1.148 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : reiserfs_get_block+0x12d4/0x3fd0 fs/reiserfs/inode.c:1060
lr : reiserfs_get_block+0x1298/0x3fd0 fs/reiserfs/inode.c:1055
sp : ffff800020446f00
x29: ffff800020447580 x28: 1fffe0001d208411 x27: ffffffffffffffff
x26: 00000000000003f4 x25: 000000000000000c x24: 0000000000000005
x23: 0000000000000000 x22: 0000000000000010 x21: 0000000000000214
x20: ffff0000e65e1598 x19: dfff800000000000 x18: 0000000000000000
x17: 0000000000000002 x16: ffff800008c9b100 x15: 00000000fffffffd
x14: ffff0000c69c9b40 x13: 0000000000ff0100 x12: 0000000000040000
x11: 0000000000000000 x10: 0000000000000002 x9 : 0000000000000003
x8 : 0000000000000001 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000020
x2 : 0000000000000000 x1 : 00000000000003f4 x0 : 0000000000000000
Call trace:
 reiserfs_get_block+0x12d4/0x3fd0 fs/reiserfs/inode.c:1060
 __block_write_begin_int+0x3ec/0x1608 fs/buffer.c:2012
 __block_write_begin+0x40/0x54 fs/buffer.c:2062
 reiserfs_write_begin+0x3c8/0x654 fs/reiserfs/inode.c:2790
 generic_perform_write+0x24c/0x520 mm/filemap.c:3785
 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912
 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944
 call_write_iter include/linux/fs.h:2174 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x884/0xb44 fs/read_write.c:594
 ksys_write+0x15c/0x26c 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+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 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: 35006a48 8b1b0ad9 b94483f5 d343ff28 (38f36908) 
---[ end trace 22cca8097c6fe35a ]---
----------------
Code disassembly (best guess):
   0:	35006a48 	cbnz	w8, 0xd48
   4:	8b1b0ad9 	add	x25, x22, x27, lsl #2
   8:	b94483f5 	ldr	w21, [sp, #1152]
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	38f36908 	ldrsb	w8, [x8, x19] <-- trapping instruction