Use zero address when reporting unknown peer in SMK error

This avoids potential use of uninitialized stack memory when printing
out peer address based on SMK error message that does not include the
MAC address.

diff --git a/src/rsn_supp/peerkey.c b/src/rsn_supp/peerkey.c
index 59f7279..9d60d4a 100644 (file)
--- a/src/rsn_supp/peerkey.c
+++ b/src/rsn_supp/peerkey.c
@@ -634,6 +634,8 @@ static int wpa_supplicant_process_smk_error(
 
        if (kde.mac_addr && kde.mac_addr_len >= ETH_ALEN)
                os_memcpy(peer, kde.mac_addr, ETH_ALEN);
+       else
+               os_memset(peer, 0, ETH_ALEN);
        os_memcpy(&error, kde.error, sizeof(error));
        error_type = be_to_host16(error.error_type);
        wpa_msg(sm->ctx->msg_ctx, MSG_INFO,