Update crypto/x509/x509_vpm.c

Co-authored-by: Viktor Dukhovni <viktor1ghub@dukhovni.org>
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
MergeDate: Tue Feb 24 14:04:30 2026
(Merged from https://github.com/openssl/openssl/pull/29612)

diff --git a/crypto/x509/x509_vpm.c b/crypto/x509/x509_vpm.c
index c3e4e25fc326e3605680b815efe29f3aa9cc02d5..836800193387db5207d7a787da1d25ab87e79b4e 100644 (file)
--- a/crypto/x509/x509_vpm.c
+++ b/crypto/x509/x509_vpm.c
@@ -315,7 +315,7 @@ static int validate_email_name(const char *name, size_t len, int rfc822)
         goto err;
 
     /* Go to the last @ */
-    while ((next = memchr(at + 1, '@', len - (at - name - 1))) != NULL)
+    while ((next = memchr(at + 1, '@', len - (at - name + 1))) != NULL)
         at = next;
 
     /* Ensure the local part is not oversize */