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Use zero address when reporting unknown peer in SMK error

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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.
This commit is contained in:
Jouni Malinen 2010-01-10 19:00:25 +02:00
parent e4a6ea1d9c
commit 0e75b3c352
1 changed files with 2 additions and 0 deletions
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2
src/rsn_supp/peerkey.c
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@ -634,6 +634,8 @@ static int wpa_supplicant_process_smk_error(
if (kde.mac_addr && kde.mac_addr_len >= ETH_ALEN) if (kde.mac_addr && kde.mac_addr_len >= ETH_ALEN)
os_memcpy(peer, kde.mac_addr, ETH_ALEN); os_memcpy(peer, kde.mac_addr, ETH_ALEN);
else
os_memset(peer, 0, ETH_ALEN);
os_memcpy(&error, kde.error, sizeof(error)); os_memcpy(&error, kde.error, sizeof(error));
error_type = be_to_host16(error.error_type); error_type = be_to_host16(error.error_type);
wpa_msg(sm->ctx->msg_ctx, MSG_INFO, wpa_msg(sm->ctx->msg_ctx, MSG_INFO,