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[winpr,sspi] fix krb5_ccache initialization

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Ensure the cache is either initialized and valid or abort in
kerberos_AcquireCredentialsHandleA
This commit is contained in:
akallabeth
2026-01-15 09:40:02 +01:00
parent 2253c1c3f0
commit c730a837fd
1 changed files with 9 additions and 0 deletions
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9
winpr/libwinpr/sspi/Kerberos/kerberos.c
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@@ -397,7 +397,12 @@ static SECURITY_STATUS SEC_ENTRY kerberos_AcquireCredentialsHandleA(
goto cleanup;
}
else
{
if (krb_log_exec(krb5_cc_default, ctx, &ccache))
goto cleanup;
own_ccache = FALSE;
}
WINPR_ASSERT(ccache);
}
else if (fCredentialUse & SECPKG_CRED_OUTBOUND)
{
@@ -406,6 +411,7 @@ static SECURITY_STATUS SEC_ENTRY kerberos_AcquireCredentialsHandleA(
goto cleanup;
if (krb_log_exec(krb5_cc_get_principal, ctx, ccache, &principal))
goto cleanup;
WINPR_ASSERT(ccache);
own_ccache = FALSE;
}
else
@@ -420,6 +426,7 @@ static SECURITY_STATUS SEC_ENTRY kerberos_AcquireCredentialsHandleA(
if (krb_log_exec(krb5_cc_resolve, ctx, krb_settings->cache, &ccache))
goto cleanup;
}
WINPR_ASSERT(ccache);
}
if (krb_settings && krb_settings->keytab)
@@ -446,6 +453,8 @@ static SECURITY_STATUS SEC_ENTRY kerberos_AcquireCredentialsHandleA(
matchCreds.client = principal;
WINPR_ASSERT(principal);
WINPR_ASSERT(ctx);
WINPR_ASSERT(ccache);
if (krb_log_exec(build_krbtgt, ctx, principal, &matchCreds.server))
goto cleanup;