File libpano-CVE-2021-33293.patch of Package libpano.17744

diff --git a/parser.c b/parser.c
index 26d3290..9504fa7 100755
--- a/parser.c
+++ b/parser.c
@@ -2491,6 +2491,8 @@ char *panoParserFindOLine(char *script, int index)
     }
     // find next beginning of line
     ptr = strchr(ptr, '\n');
+    if (ptr == NULL)
+      break;
     ptr++;
 
     }