r0 = syz_io_uring_setup(0x25, &(0x7f0000000080), &(0x7f0000fe9000/0x4000)=nil, &(0x7f0000fea000/0x2000)=nil, &(0x7f0000000180)=0x0, &(0x7f0000000000)=0x0) r3 = socket$inet(0x2, 0x1, 0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000040)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0xc, &(0x7f0000000200)=@in={0x2, 0x0, @empty}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000000)=@IORING_OP_SENDMSG={0x9, 0x0, 0x0, 0xffffffffffffffff, 0x0, &(0x7f0000000900)={&(0x7f0000000200)=@l2tp6={0xa, 0x0, 0x0, @mcast2}, 0x80, 0x0}}, 0x0) io_uring_enter(r0, 0xaf7, 0x0, 0x0, 0x0, 0x0)