PHP 4.0 Bug #4201 Updated: ImageCreateFromPNG("/dev/null") crashes (Segfault)

ID: 4201 User Update by: flebarbe@ocare.com Status: Open Bug Type: Reproduceable crash Description: ImageCreateFromPNG("/dev/null") crashes (Segfault) Here's the patch... ----------------------------------------------------------------------------- --- gd.c.orig Wed Apr 19 12:27:40 2000 +++ gd.c Wed Apr 19 14:00:48 2000 @@ -460,6 +460,10 @@ fflush(fp); fclose(fp); + if (!im) { + php_error(E_WARNING,"ImageCreateFromPng: %s is not a valid PNG file", fn); + RETURN_FALSE; + } ZEND_REGISTER_RESOURCE(return_value, im, GDG(le_gd)); } /* }}} */ @@ -570,6 +574,10 @@ fflush(fp); fclose(fp); + if (!im) { + php_error(E_WARNING,"ImageCreateFromGif: %s is not a recognized GIF file", fn); + RETURN_FALSE; + } ZEND_REGISTER_RESOURCE(return_value, im, GDG(le_gd)); } /* }}} */ @@ -683,6 +691,10 @@ fflush(fp); fclose(fp); + if (!im) { + php_error(E_WARNING,"ImageCreateFromJPEG: %s is not a recognized JPEG file", fn); + RETURN_FALSE; + } ZEND_REGISTER_RESOURCE(return_value, im, GDG(le_gd)); } /* }}} */ Full Bug description available at: http://bugs.php.net/version4/?id=4201