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res_rtp_asterisk.c: Initialize ourip passed to ast_find_ourip().

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We access uninitialized memory when the 'ourip' parameter does not
have an initial guess to our IP address.

ASTERISK-26672

Change-Id: I35507ea1ad7455d2be188f6ccdd4add7bd150e15
This commit is contained in:
Richard Mudgett
2016-12-21 17:55:48 -06:00
parent 67cc8499a2
commit 2fc65173e5
1 changed files with 2 additions and 0 deletions
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2
res/res_rtp_asterisk.c
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@@ -4912,9 +4912,11 @@ static void ast_rtp_prop_set(struct ast_rtp_instance *instance, enum ast_rtp_pro
ast_sockaddr_set_port(&rtp->rtcp->us,
ast_sockaddr_port(&rtp->rtcp->us) + 1);
ast_sockaddr_copy(&local_addr, &rtp->rtcp->us);
if (!ast_find_ourip(&local_addr, &rtp->rtcp->us, 0)) {
ast_sockaddr_set_port(&local_addr, ast_sockaddr_port(&rtp->rtcp->us));
} else {
/* Failed to get local address reset to use default. */
ast_sockaddr_copy(&local_addr, &rtp->rtcp->us);
}