commit 1421efa25e34f39d3acf1e9e16bec228a1440442
author Werner Lewis <werner.lewis@arm.com> Mon Jun 27 12:01:22 2022 +0100
committer Werner Lewis <werner.lewis@arm.com> Mon Jun 27 12:04:43 2022 +0100
tree d54a7be30b9e3f5025c686250ecd35e5a71d9ccc
parent 2ee1e2dd2217afd253e3fb9705212ea00951a181

Fix case where final special char exceeds buffer

Signed-off-by: Werner Lewis <werner.lewis@arm.com>

library/x509.c

diff --git a/library/x509.c b/library/x509.c
index c55d038..3997ebd 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -785,7 +785,7 @@
             if( c && strchr( ",=+<>#;\"\\", c ) )
             {
                 if( j + 1 >= sizeof( s ) - 1 )
-                    continue;
+                    return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );
                 s[j++] = '\\';
             }
             if( c < 32 || c >= 127 )