wg_noise: set handshake to dead before removing keypair

Otherwise CK_LIST_REMOVE might be called twice on the same element.
Running the following trigger will reproduce the bug that Manojav
reported:

    #!/usr/local/bin/bash
    NUM_PEER=50
    peer_args=( )
    for ((i=0; i<NUM_PEER; i++)); do
      port="$RANDOM"
      private="$(wg genkey)"
      ifconfig "wg$i" create
      wg set "wg$i" listen-port "$port" private-key <(echo "$private")
      peer_args+=( peer "$(wg pubkey <<<"$private")" endpoint "127.0.0.1:$port" persistent-keepalive 1 )
    done
    for ((i=0; i<NUM_PEER; i++)); do
      wg set "wg$i" "${peer_args[@]}"
      ifconfig "wg$i" up
    done
    wg
    while true; do
      for ((i=0; i<NUM_PEER; i++)); do
        ifconfig "wg$i" down
        ifconfig "wg$i" up
      done
    done

Reported-by: Manojav Sridhar <manojav@manojav.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

0 files changed, 0 insertions, 0 deletions