limit dl() argument length (patch by Christian Hoffmann)

diff --git a/ext/standard/dl.c b/ext/standard/dl.c
index 7b2f5df87f0fbbdade60c52b8324e85eac1d3d0b..a31f1b4b1bcbafc8322fc44921805ad998e7ac30 100644 (file)
--- a/ext/standard/dl.c
+++ b/ext/standard/dl.c
@@ -73,6 +73,11 @@ PHP_FUNCTION(dl)
                RETURN_FALSE;
        }
 
+       if (Z_STRLEN_PP(file) >= MAXPATHLEN) {
+               php_error_docref(NULL TSRMLS_CC, E_WARNING, "File name exceeds the maximum allowed length of %d characters", MAXPATHLEN);
+               RETURN_FALSE;
+       }
+
        if ((strncmp(sapi_module.name, "cgi", 3)!=0) && 
                (strcmp(sapi_module.name, "cli")!=0) &&
                (strncmp(sapi_module.name, "embed", 5)!=0)) {