r0 = socket$inet6_udplite(0xa, 0x2, 0x88) setsockopt$inet6_mreq(r0, 0x29, 0x1b, &(0x7f0000000080)={@remote}, 0x14) r1 = socket$inet6(0xa, 0x3, 0x5) r2 = dup2(r0, r1) setsockopt$inet6_mreq(r2, 0x29, 0x1b, &(0x7f00000001c0)={@empty}, 0x14) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/anycast6\x00') preadv(r3, &(0x7f0000000040)=[{&(0x7f0000000200)=""/247, 0xf7}], 0x1, 0x48, 0x0)