Unable to handle kernel paging request at virtual address dfff800000000007
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000007] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 7993 Comm: syz-executor373 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : list_add_tail include/linux/list.h:102 [inline]
pc : sctp_outq_tail_data net/sctp/outqueue.c:91 [inline]
pc : sctp_outq_tail+0x270/0xa1c net/sctp/outqueue.c:299
lr : sctp_stream_out include/net/sctp/structs.h:1486 [inline]
lr : sctp_outq_tail_data net/sctp/outqueue.c:90 [inline]
lr : sctp_outq_tail+0x244/0xa1c net/sctp/outqueue.c:299
sp : ffff800021397290
x29: ffff8000213972a0 x28: 0000000000000007 x27: dfff800000000000
x26: 0000000000000038 x25: 0000000000000030 x24: ffff0000d9e2eb90
x23: ffff0000d9e2eb58 x22: ffff0000d9e2eba0 x21: ffff0000d9e2eb40
x20: ffff0000dbb3a7e0 x19: 1fffe0001b3c5d74 x18: 0000000000000180
x17: ffff800015cdd000 x16: ffff8000085110b0 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000040 x12: ffff0000cf2951c0
x11: ff8080000ab43694 x10: 0000000000000000 x9 : ffff80000ab43694
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : ffff800021397420 x4 : ffff0000dca1c600 x3 : ffff8000119cb5b0
x2 : ffff0000dbb3a7e8 x1 : 00000000000000c0 x0 : ffff0000d52c00c0
Call trace:
 list_add_tail include/linux/list.h:102 [inline]
 sctp_outq_tail_data net/sctp/outqueue.c:91 [inline]
 sctp_outq_tail+0x270/0xa1c net/sctp/outqueue.c:299
 sctp_cmd_send_msg net/sctp/sm_sideeffect.c:1114 [inline]
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1777 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline]
 sctp_do_sm+0x2858/0x4dc4 net/sctp/sm_sideeffect.c:1170
 sctp_primitive_SEND+0x98/0xc8 net/sctp/primitive.c:163
 sctp_sendmsg_to_asoc+0xd34/0x12f0 net/sctp/socket.c:1868
 sctp_sendmsg+0x196c/0x2844 net/sctp/socket.c:2026
 inet_sendmsg+0x15c/0x290 net/ipv4/af_inet.c:825
 sock_sendmsg_nosec net/socket.c:722 [inline]
 sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x3b4/0x538 net/socket.c:2145
 __do_sys_sendto net/socket.c:2157 [inline]
 __se_sys_sendto net/socket.c:2153 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2153
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
Code: 910062b7 9100e11a 9100c119 d343ff5c (387b6b89) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	910062b7 	add	x23, x21, #0x18
   4:	9100e11a 	add	x26, x8, #0x38
   8:	9100c119 	add	x25, x8, #0x30
   c:	d343ff5c 	lsr	x28, x26, #3
* 10:	387b6b89 	ldrb	w9, [x28, x27] <-- trapping instruction