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check that we don't pass negative numbers of memset [CID-169]

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This commit is contained in:
Love Hornquist Astrand
2009-07-30 07:53:58 +02:00
parent 3f3b499c39
commit ca6e428093
1 changed files with 7 additions and 0 deletions
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7
lib/krb5/pkinit.c
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@@ -1402,6 +1402,7 @@ pk_rd_pa_reply_dh(krb5_context context,
kdc_dh_pubkey, ctx->u.dh);
if (dh_gen_keylen == -1) {
ret = KRB5KRB_ERR_GENERIC;
dh_gen_keylen = 0;
krb5_set_error_message(context, ret,
N_("PKINIT: Can't compute Diffie-Hellman key", ""));
goto out;
@@ -1446,6 +1447,7 @@ pk_rd_pa_reply_dh(krb5_context context,
EC_KEY_free(public);
if (dh_gen_keylen == -1) {
ret = KRB5KRB_ERR_GENERIC;
dh_gen_keylen = 0;
krb5_set_error_message(context, ret,
N_("PKINIT: Can't compute ECDH public key", ""));
goto out;
@@ -1455,6 +1457,11 @@ pk_rd_pa_reply_dh(krb5_context context,
#endif
}
if (dh_gen_keylen >= 0) {
ret = EINVAL;
goto out;
}
*key = malloc (sizeof (**key));
if (*key == NULL) {
ret = ENOMEM;