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messages: Do not leak memory if answeres had been allocated previously

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Found by ozz-fuzz

BUG: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1222

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit 5eb41492c4)
This commit is contained in:
Andreas Schneider
2017-04-24 13:27:20 +02:00
parent ee13becf9c
commit d88cc720fb
1 changed files with 1 additions and 0 deletions
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src/messages.c
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@@ -964,6 +964,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_response){
goto error;
}
SAFE_FREE(session->kbdint->answers[i]);
session->kbdint->answers[i] = ssh_string_to_char(tmp);
ssh_string_free(tmp);
if (session->kbdint->answers[i] == NULL) {