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check that num_data >= 0

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24079 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-12-11 04:55:14 +00:00
parent 83ad3c21e9
commit 669aa01712
1 changed files with 15 additions and 0 deletions
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15
lib/krb5/crypto.c
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@@ -3162,6 +3162,11 @@ krb5_encrypt_iov_ivec(krb5_context context,
const struct encryption_type *et = crypto->et;
krb5_crypto_iov *tiv, *piv, *hiv;
if (num_data < 0) {
krb5_clear_error_message(context);
return KRB5_CRYPTO_INTERNAL;
}
if(!derived_crypto(context, crypto)) {
krb5_clear_error_message(context);
return KRB5_CRYPTO_INTERNAL;
@@ -3363,6 +3368,11 @@ krb5_decrypt_iov_ivec(krb5_context context,
struct encryption_type *et = crypto->et;
krb5_crypto_iov *tiv, *hiv;
if (num_data < 0) {
krb5_clear_error_message(context);
return KRB5_CRYPTO_INTERNAL;
}
if(!derived_crypto(context, crypto)) {
krb5_clear_error_message(context);
return KRB5_CRYPTO_INTERNAL;
@@ -3518,6 +3528,11 @@ krb5_create_checksum_iov(krb5_context context,
size_t len;
char *p, *q;
if (num_data < 0) {
krb5_clear_error_message(context);
return KRB5_CRYPTO_INTERNAL;
}
if(!derived_crypto(context, crypto)) {
krb5_clear_error_message(context);
return KRB5_CRYPTO_INTERNAL;