r0 = syz_io_uring_setup(0x620e, &(0x7f0000000180), &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000000100)=0x0, &(0x7f0000000140)=0x0) r3 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) syz_io_uring_submit(r1, r2, &(0x7f0000000000)=@IORING_OP_SENDMSG={0x9, 0x0, 0x0, r3, 0x0, &(0x7f0000000900)={&(0x7f0000000200)=@l2tp6={0xa, 0x0, 0x0, @ipv4}, 0x80, &(0x7f0000000840)=[{&(0x7f0000000440)="a644", 0x2}], 0x1}}, 0x0) io_uring_enter(r0, 0x800012d, 0x0, 0x0, 0x0, 0x0)