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messages: Make sure we always free the answers pointer

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Found by ozz-fuzz

BUG: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1272

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider
2017-04-26 10:55:25 +02:00
parent 7c79b5c154
commit abbd6e304a
1 changed files with 2 additions and 2 deletions
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4
src/messages.c
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@@ -969,7 +969,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_response){
goto error; goto error;
} }
} else if (session->kbdint->nanswers > 0) { } else if (session->kbdint->answers != NULL) {
uint32_t n; uint32_t n;
for (n = 0; n < session->kbdint->nanswers; n++) { for (n = 0; n < session->kbdint->nanswers; n++) {
@@ -998,7 +998,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_response){
} }
session->kbdint->nanswers = nanswers; session->kbdint->nanswers = nanswers;
session->kbdint->answers = calloc(1, nanswers * sizeof(char *)); session->kbdint->answers = calloc(nanswers, sizeof(char *));
if (session->kbdint->answers == NULL) { if (session->kbdint->answers == NULL) {
session->kbdint->nanswers = 0; session->kbdint->nanswers = 0;
ssh_set_error_oom(session); ssh_set_error_oom(session);