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SSH-01-006: Add missing NULL check in ssh_gssapi_build_mic()

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Fixes T193

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Andreas Schneider
2019-10-28 14:03:03 +01:00
parent 33cca875c2
commit c7172c183f
1 changed files with 5 additions and 1 deletions
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6
src/gssapi.c
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@@ -444,13 +444,17 @@ static ssh_buffer ssh_gssapi_build_mic(ssh_session session)
ssh_buffer mic_buffer = NULL;
int rc;
crypto = ssh_packet_get_current_crypto(session, SSH_DIRECTION_BOTH);
if (crypto == NULL) {
return NULL;
}
mic_buffer = ssh_buffer_new();
if (mic_buffer == NULL) {
ssh_set_error_oom(session);
return NULL;
}
crypto = ssh_packet_get_current_crypto(session, SSH_DIRECTION_BOTH);
rc = ssh_buffer_pack(mic_buffer,
"dPbsss",
crypto->digest_len,