Unable to handle kernel paging request at virtual address dfff800000000018
KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]
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
[dfff800000000018] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 8762 Comm: syz.0.507 Not tainted 6.15.0-rc6-syzkaller-gc919f08732cc #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __in6_dev_get include/net/addrconf.h:347 [inline]
pc : ip6_ignore_linkdown include/net/addrconf.h:443 [inline]
pc : find_match+0xa0/0xacc net/ipv6/route.c:781
lr : find_match+0x74/0xacc net/ipv6/route.c:778
sp : ffff80009dbb6bc0
x29: ffff80009dbb6be0 x28: 1fffe0001aecd6c6 x27: 1fffe0001aecd6c4
x26: 00000000000000c0 x25: ffff0000d766b637 x24: 0000000000000201
x23: 0000000000000002 x22: ffff0000d766b620 x21: 0000000000000000
x20: dfff800000000000 x19: 0000000000000000 x18: 1fffe0003386aa76
x17: ffff80008f31e000 x16: ffff80008051b90c x15: 0000000000000001
x14: 1fffe0003386d4e8 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 0000000000ff0100 x9 : 0000000000000002
x8 : 0000000000000018 x7 : ffff800080485078 x6 : 0000000000000000
x5 : ffff80009dbb6f70 x4 : ffff80009dbb6f60 x3 : 0000000000000002
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __in6_dev_get include/net/addrconf.h:347 [inline] (P)
 ip6_ignore_linkdown include/net/addrconf.h:443 [inline] (P)
 find_match+0xa0/0xacc net/ipv6/route.c:781 (P)
 rt6_nh_find_match+0xcc/0x138 net/ipv6/route.c:821
 nexthop_for_each_fib6_nh+0x1a8/0x3d0 net/ipv4/nexthop.c:1515
 __find_rr_leaf+0x3b8/0x5c8 net/ipv6/route.c:862
 find_rr_leaf net/ipv6/route.c:890 [inline]
 rt6_select net/ipv6/route.c:934 [inline]
 fib6_table_lookup+0x308/0x8b8 net/ipv6/route.c:2230
 ip6_pol_route+0x1f8/0x1014 net/ipv6/route.c:2266
 ip6_pol_route_output+0x60/0x94 net/ipv6/route.c:2641
 pol_lookup_func include/net/ip6_fib.h:616 [inline]
 fib6_rule_lookup+0x258/0x45c net/ipv6/fib6_rules.c:125
 ip6_route_output_flags_noref net/ipv6/route.c:2674 [inline]
 ip6_route_output_flags+0x2e4/0x578 net/ipv6/route.c:2686
 ip6_route_output include/net/ip6_route.h:93 [inline]
 ip6_dst_lookup_tail+0x168/0x12e4 net/ipv6/ip6_output.c:1128
 ip6_dst_lookup_flow+0x54/0xe0 net/ipv6/ip6_output.c:1259
 sctp_v6_get_dst+0x668/0x16cc net/sctp/ipv6.c:326
 sctp_transport_route+0xe8/0x258 net/sctp/transport.c:457
 sctp_assoc_add_peer+0x4e0/0x133c net/sctp/associola.c:663
 sctp_connect_new_asoc+0x2e8/0x620 net/sctp/socket.c:1100
 __sctp_connect+0x4ac/0xb38 net/sctp/socket.c:1198
 __sctp_setsockopt_connectx net/sctp/socket.c:1337 [inline]
 sctp_getsockopt_connectx3+0x28c/0x538 net/sctp/socket.c:1422
 sctp_getsockopt+0x414/0x968 net/sctp/socket.c:8134
 sock_common_getsockopt+0xa8/0xc4 net/core/sock.c:3867
 do_sock_getsockopt+0x248/0x3c4 net/socket.c:2357
 __sys_getsockopt net/socket.c:2386 [inline]
 __do_sys_getsockopt net/socket.c:2393 [inline]
 __se_sys_getsockopt net/socket.c:2390 [inline]
 __arm64_sys_getsockopt+0x168/0x1d8 net/socket.c:2390
 __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+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 9797a8b1 f94002c8 9103011a d343ff48 (38746908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	9797a8b1 	bl	0xfffffffffe5ea2c4
   4:	f94002c8 	ldr	x8, [x22]
   8:	9103011a 	add	x26, x8, #0xc0
   c:	d343ff48 	lsr	x8, x26, #3
* 10:	38746908 	ldrb	w8, [x8, x20] <-- trapping instruction