Unable to handle kernel paging request at virtual address dfff800000000006
KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
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
[dfff800000000006] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 7419 Comm: syz.1.1484 Not tainted 6.15.0-rc6-syzkaller-00047-ge9565e23cd89 #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : is_anon_ns fs/mount.h:165 [inline]
pc : do_move_mount+0x148/0x1880 fs/namespace.c:3648
lr : do_move_mount+0x30/0x1880 fs/namespace.c:3626
sp : ffff8000a1a07ad0
x29: ffff8000a1a07ad0 x28: ffff0000308c7400 x27: ffff0000308c7400
x26: ffff00000e1aa540 x25: ffff00000e1aa560 x24: ffff8000a1a07c90
x23: ffff8000a1a07d90 x22: ffffffffffffffea x21: ffff00000e1aa540
x20: 0000000000000000 x19: ffff000014534580 x18: 00000000000000db
x17: ffff800080ae723c x16: ffff800080ae0ccc x15: ffff800080ad3528
x14: ffff800080907cb0 x13: 0000000000000000 x12: 0000000000000000
x11: 1ffff00014340fb2 x10: 1ffff00014340f92 x9 : 0000000000000032
x8 : 0000000000000006 x7 : ffff000017ea5a60 x6 : ffff700010e12aff
x5 : ffff8000870957f8 x4 : 1fffe00001c354c7 x3 : 0000000000000000
x2 : 1fffe00002ff077c x1 : 0000000000000000 x0 : dfff800000000000
Call trace:
 check_mnt fs/namespace.c:1003 [inline] (P)
 may_use_mount fs/namespace.c:3601 [inline] (P)
 do_move_mount+0x148/0x1880 fs/namespace.c:3640 (P)
 do_move_mount_old fs/namespace.c:3752 [inline]
 path_mount+0x404/0x1808 fs/namespace.c:4206
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount fs/namespace.c:4409 [inline]
 __arm64_sys_mount+0x304/0x3dc fs/namespace.c:4409
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x50/0x180 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x10c/0x138 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: d2d00000 f2fbffe0 d343fd28 f9400f7b (38e06900) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d2d00000 	mov	x0, #0x800000000000        	// #140737488355328
   4:	f2fbffe0 	movk	x0, #0xdfff, lsl #48
   8:	d343fd28 	lsr	x8, x9, #3
   c:	f9400f7b 	ldr	x27, [x27, #24]
* 10:	38e06900 	ldrsb	w0, [x8, x0] <-- trapping instruction