Fix phpGH-17017: OOB read when starting up file cache (phpGH-17023)

`zend_system_id` is not zero-terminated; as such we must constrain the number of characters we print.
dstogov · Dec 3, 2024 · 85f7e54 · 85f7e54
1 parent bcb7f9b
commit 85f7e54
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
@@ -3331,7 +3331,7 @@ static zend_result accel_post_startup(void)
 	}
 
 	if ( ZCG(accel_directives).file_cache ) {
-		zend_accel_error(ACCEL_LOG_INFO, "opcache.file_cache running with PHP build ID: %s", zend_system_id);
+		zend_accel_error(ACCEL_LOG_INFO, "opcache.file_cache running with PHP build ID: %.32s", zend_system_id);
 
 		zend_stat_t buf = {0};