Unable to handle kernel paging 
Unable to handle kernel paging request at virtual address dfff800000000021
KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f]
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
[dfff800000000021] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 491 Comm: kworker/u8:6 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: netns cleanup_net
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : read_pnet include/net/net_namespace.h:409 [inline]
pc : dev_net include/linux/netdevice.h:2708 [inline]
pc : __igmp_group_dropped+0xbc/0x658 net/ipv4/igmp.c:1298
lr : read_pnet include/net/net_namespace.h:409 [inline]
lr : dev_net include/linux/netdevice.h:2708 [inline]
lr : __igmp_group_dropped+0xb8/0x658 net/ipv4/igmp.c:1298
sp : ffff80009c7a7380
x29: ffff80009c7a7430 x28: ffff80009c7a73a0 x27: 1fffe0001d081c80
x26: dfff800000000000 x25: ffff7000138f4e74 x24: dfff800000000000
x23: 0000000000000108 x22: ffff0000f1a6d000 x21: ffff0000e840e400
x20: ffff80008d7b6200 x19: ffff0000f1a6d000 x18: 1fffe0003386f276
x17: ffff80008f31e000 x16: ffff80008051c10c x15: 0000000000000001
x14: 1ffff00012491d18 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700012491d19 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000021 x7 : ffff800087f2260c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000805140cc
x2 : 0000000000000000 x1 : 0000000000000cc0 x0 : 0000000000000001
Call trace:
 read_pnet include/net/net_namespace.h:409 [inline] (P)
 dev_net include/linux/netdevice.h:2708 [inline] (P)
 __igmp_group_dropped+0xbc/0x658 net/ipv4/igmp.c:1298 (P)
 igmp_group_dropped net/ipv4/igmp.c:1335 [inline]
 ip_mc_down+0x130/0x3b8 net/ipv4/igmp.c:1829
 inetdev_event+0x228/0x13dc net/ipv4/devinet.c:1642
 notifier_call_chain+0x1b8/0x4e4 kernel/notifier.c:85
 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453
 call_netdevice_notifiers_info net/core/dev.c:2176 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2214 [inline]
 call_netdevice_notifiers net/core/dev.c:2228 [inline]
 dev_close_many+0x2d4/0x448 net/core/dev.c:1731
 unregister_netdevice_many_notify+0x664/0x1fbc net/core/dev.c:11942
 unregister_netdevice_many+0x28/0x38 net/core/dev.c:12036
 cleanup_net+0x570/0x9c0 net/core/net_namespace.c:649
 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
Code: f94002a8 91042117 9451750e d343fee8 (387a6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f94002a8 	ldr	x8, [x21]
   4:	91042117 	add	x23, x8, #0x108
   8:	9451750e 	bl	0x145d440
   c:	d343fee8 	lsr	x8, x23, #3
* 10:	387a6908 	ldrb	w8, [x8, x26] <-- trapping instruction