Unable to handle kernel paging request at virtual address dfff800000000012
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
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
[dfff800000000012] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 UID: 0 PID: 7900 Comm: syz.2.274 Not tainted 6.14.0-rc1-syzkaller-g2014c95afece #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __fib6_drop_pcpu_from+0x1c0/0x3e8 net/ipv6/ip6_fib.c:980
lr : __fib6_drop_pcpu_from+0x158/0x3e8 net/ipv6/ip6_fib.c:966
sp : ffff80009d415d80
x29: ffff80009d415d80 x28: 1fffe00018fc30a2 x27: dfff800000000000
x26: ffff0000c7e18400 x25: 0000000000000093 x24: fffffdffbf795070
x23: 0000000000000001 x22: dfff800000000000 x21: 1ffff00011e9cc66
x20: ffff0000c7e18510 x19: 0000000000000008 x18: 1ffff00013a82c7a
x17: ffff80008fbcd000 x16: ffff8000806a120c x15: 0000000000000001
x14: 1ffff00011f7a0cb x13: dfff800000000000 x12: 000000006262a1fd
x11: 0000000000080000 x10: 0000000000ff0100 x9 : 0000000000000002
x8 : 0000000000000012 x7 : ffff80008a5158c8 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000008
Call trace:
 __fib6_drop_pcpu_from+0x1c0/0x3e8 net/ipv6/ip6_fib.c:980 (P)
 fib6_drop_pcpu_from net/ipv6/ip6_fib.c:1024 [inline]
 fib6_purge_rt+0x208/0x7a4 net/ipv6/ip6_fib.c:1035
 fib6_del_route net/ipv6/ip6_fib.c:1995 [inline]
 fib6_del+0xc0c/0x126c net/ipv6/ip6_fib.c:2040
 fib6_clean_node+0x24c/0x4d0 net/ipv6/ip6_fib.c:2202
 fib6_walk_continue+0x5b8/0x7e0 net/ipv6/ip6_fib.c:2124
 fib6_walk+0x144/0x258 net/ipv6/ip6_fib.c:2172
 fib6_clean_tree net/ipv6/ip6_fib.c:2252 [inline]
 __fib6_clean_all+0x29c/0x418 net/ipv6/ip6_fib.c:2268
 fib6_clean_all+0x3c/0x50 net/ipv6/ip6_fib.c:2279
 rt6_sync_down_dev net/ipv6/route.c:4908 [inline]
 rt6_disable_ip+0x130/0x718 net/ipv6/route.c:4913
 addrconf_ifdown+0x154/0x17c8 net/ipv6/addrconf.c:3849
 addrconf_notify+0x340/0xce8
 notifier_call_chain+0x1c4/0x550 kernel/notifier.c:85
 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453
 __dev_notify_flags+0x2c4/0x550
 dev_change_flags+0xd0/0x15c net/core/dev.c:9249
 do_setlink+0x9f0/0x3640 net/core/rtnetlink.c:3118
 rtnl_changelink net/core/rtnetlink.c:3732 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3884 [inline]
 rtnl_newlink+0x15ac/0x1adc net/core/rtnetlink.c:4021
 rtnetlink_rcv_msg+0x670/0xa9c net/core/rtnetlink.c:6911
 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2543
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6938
 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
 netlink_unicast+0x668/0x8a4 net/netlink/af_netlink.c:1348
 netlink_sendmsg+0x7a4/0xa8c net/netlink/af_netlink.c:1892
 sock_sendmsg_nosec net/socket.c:713 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 ____sys_sendmsg+0x56c/0x840 net/socket.c:2568
 ___sys_sendmsg net/socket.c:2622 [inline]
 __sys_sendmsg+0x238/0x304 net/socket.c:2654
 __do_sys_sendmsg net/socket.c:2659 [inline]
 __se_sys_sendmsg net/socket.c:2657 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2657
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: f9400308 b4000188 91024119 d343ff28 (387b6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f9400308 	ldr	x8, [x24]
   4:	b4000188 	cbz	x8, 0x34
   8:	91024119 	add	x25, x8, #0x90
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	387b6908 	ldrb	w8, [x8, x27] <-- trapping instruction