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dh-gex: Avoid memory leaks

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Thanks oss-fuzz

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29611
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Jakub Jelen
2021-01-15 19:23:53 +01:00
parent 8e56585c72
commit ae809b3cbb
1 changed files with 3 additions and 0 deletions
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3
src/dh-gex.c
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@@ -263,6 +263,8 @@ static SSH_PACKET_CALLBACK(ssh_packet_client_dhgex_reply)
bignum_safe_free(server_pubkey);
goto error;
}
/* The ownership was passed to the crypto structure */
server_pubkey = NULL;
rc = ssh_dh_import_next_pubkey_blob(session, pubkey_blob);
SSH_STRING_FREE(pubkey_blob);
@@ -293,6 +295,7 @@ static SSH_PACKET_CALLBACK(ssh_packet_client_dhgex_reply)
return SSH_PACKET_USED;
error:
SSH_STRING_FREE(pubkey_blob);
ssh_dh_cleanup(session->next_crypto);
session->session_state = SSH_SESSION_STATE_ERROR;