siw: device registration error -23
Unable to handle kernel paging request at virtual address dfff80000000000d
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
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
[dfff80000000000d] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 10073 Comm: syz.6.1236 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : kernel_sock_shutdown+0x4c/0x80 net/socket.c:3785
lr : kernel_sock_shutdown+0x28/0x80 net/socket.c:3784
sp : ffff800095fe6f20
x29: ffff800095fe6f20 x28: ffff800095fe7500 x27: ffff8000874ab5e0
x26: 0000000000000005 x25: ffff800095fe6fe0 x24: dfff800000000000
x23: 0000000000000002 x22: dfff800000000000 x21: 0000000000000068
x20: ffff0000f0b2e040 x19: 0000000000000002 x18: 1fffe00035c20e20
x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c
x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a343d08 x10: 0000000000080000 x9 : 0000000000000a5a
x8 : 000000000000000d x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0
x2 : 0000000000000007 x1 : ffff0000cea49d00 x0 : 0000000000000001
Call trace:
 kernel_sock_shutdown+0x4c/0x80 net/socket.c:3785 (P)
 udp_tunnel_sock_release+0x6c/0x88 net/ipv4/udp_tunnel_core.c:202
 rxe_release_udp_tunnel drivers/infiniband/sw/rxe/rxe_net.c:294 [inline]
 rxe_sock_put drivers/infiniband/sw/rxe/rxe_net.c:639 [inline]
 rxe_net_del+0x114/0x31c drivers/infiniband/sw/rxe/rxe_net.c:660
 rxe_dellink+0x20/0x34 drivers/infiniband/sw/rxe/rxe.c:254
 nldev_dellink+0x2ac/0x328 drivers/infiniband/core/nldev.c:1849
 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline]
 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
 rdma_nl_rcv+0x568/0x828 drivers/infiniband/core/netlink.c:259
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x610/0x800 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x63c/0x920 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg+0xc8/0x138 net/socket.c:802
 ____sys_sendmsg+0x418/0x70c net/socket.c:2698
 ___sys_sendmsg+0x198/0x224 net/socket.c:2752
 __sys_sendmsg+0x160/0x214 net/socket.c:2784
 __do_sys_sendmsg net/socket.c:2789 [inline]
 __se_sys_sendmsg net/socket.c:2787 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2787
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x25c arch/arm64/kernel/entry-common.c:723
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:742
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Code: 97031e07 f94002a8 9101a115 d343fea8 (38766908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97031e07 	bl	0xfffffffffc0c781c
   4:	f94002a8 	ldr	x8, [x21]
   8:	9101a115 	add	x21, x8, #0x68
   c:	d343fea8 	lsr	x8, x21, #3
* 10:	38766908 	ldrb	w8, [x8, x22] <-- trapping instruction