Unable to handle kernel paging request at virtual address dfff800000000003
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000003] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 8078 Comm: syz.5.246 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : btrfs_root_node+0xdc/0x498 fs/btrfs/ctree.c:193
lr : rcu_read_lock include/linux/rcupdate.h:842 [inline]
lr : btrfs_root_node+0xdc/0x498 fs/btrfs/ctree.c:192
sp : ffff80009cdd75c0
x29: ffff80009cdd7640 x28: dfff800000000000 x27: 0000000000000800
x26: 0000000000000001 x25: ffff80009cdd77a0 x24: 0000000000000003
x23: dfff800000000000 x22: ffff800092df2000 x21: 0000000000000000
x20: ffff80008f9a9060 x19: 0000000000000018 x18: 1fffe0003379be88
x17: ffff80010c5d9000 x16: ffff80008b007230 x15: 0000000000000001
x14: 1fffe0001a26d80d x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 000000000005f692 x9 : ffff80009e7a9000
x8 : 000000000005f693 x7 : ffff8000822f7a58 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : ffff80008b6577c0 x0 : 0000000000000001
Call trace:
 rcu_read_lock include/linux/rcupdate.h:842 [inline] (P)
 btrfs_root_node+0xdc/0x498 fs/btrfs/ctree.c:192 (P)
 btrfs_read_lock_root_node+0x30/0xf0 fs/btrfs/locking.c:263
 btrfs_build_ref_tree+0xe8/0x121c fs/btrfs/ref-verify.c:988
 open_ctree+0x2034/0x32c4 fs/btrfs/disk-io.c:3594
 btrfs_fill_super fs/btrfs/super.c:977 [inline]
 btrfs_get_tree_super fs/btrfs/super.c:1937 [inline]
 btrfs_get_tree_subvol fs/btrfs/super.c:2074 [inline]
 btrfs_get_tree+0xd5c/0x1590 fs/btrfs/super.c:2108
 vfs_get_tree+0x90/0x28c fs/super.c:1815
 do_new_mount+0x278/0x7f4 fs/namespace.c:3805
 path_mount+0x5b4/0xde0 fs/namespace.c:4120
 do_mount fs/namespace.c:4133 [inline]
 __do_sys_mount fs/namespace.c:4344 [inline]
 __se_sys_mount fs/namespace.c:4321 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4321
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: 340000fa 978b4c67 36000120 97913242 (38776b08) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	340000fa 	cbz	w26, 0x1c
   4:	978b4c67 	bl	0xfffffffffe2d31a0
   8:	36000120 	tbz	w0, #0, 0x2c
   c:	97913242 	bl	0xfffffffffe44c914
* 10:	38776b08 	ldrb	w8, [x24, x23] <-- trapping instruction