krb5 commit: Fix error handling in KDC PAC processing

[ghudson at mit.edu]

https://github.com/krb5/krb5/commit/f6e2c397ceda6467ebbaab8ed66d4895c9f1d6a7
commit f6e2c397ceda6467ebbaab8ed66d4895c9f1d6a7
Author: TristanInSec <tristan.mtn at gmail.com>
Date:   Mon May 18 11:56:34 2026 -0400

    Fix error handling in KDC PAC processing
    
    When get_pac_princ_with_realm() detects the wrong number of '@'
    characters, return an error instead of 0.  When it encounters an error
    from krb5_parse_name_flags(), do not leak client_str.
    
    [ghudson at mit.edu: fixed memory leak; rewrote commit message]
    
    ticket: 9212 (new)
    tags: pullup
    target_version: 1.22-next

 src/kdc/kdc_util.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/kdc/kdc_util.c b/src/kdc/kdc_util.c
index 6f88afa2d..33b803fa9 100644
--- a/src/kdc/kdc_util.c
+++ b/src/kdc/kdc_util.c
@@ -665,13 +665,13 @@ get_pac_princ_with_realm(krb5_context context, krb5_pac pac,
 
     ret = krb5_parse_name_flags(context, client_str, flags, princ_out);
     if (ret)
-        return ret;
+        goto cleanup;
 
     (*princ_out)->type = KRB5_NT_MS_PRINCIPAL;
 
 cleanup:
     free(client_str);
-    return 0;
+    return ret;
 }
 
 /* This probably wants to be updated if you support last_req stuff */