From 1114c1a4293910e49668edfd9da96884d786f7cd Mon Sep 17 00:00:00 2001
From: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Date: Mon, 28 Oct 2013 18:52:12 +0100
Subject: [PATCH] core/fifo: check array index read before dereferencing
 uwsgi_master_fifo_manage

Reported by Coverity as CID #1100821
---
 core/fifo.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/fifo.c b/core/fifo.c
index 1a92d9bc..c59adb55 100644
--- a/core/fifo.c
+++ b/core/fifo.c
@@ -114,6 +114,11 @@ int uwsgi_master_fifo_manage(int fd) {
 		return 0;
 	}
 
+	if ((int)cmd < 0) {
+		uwsgi_error("invalid cmd read in uwsgi_master_fifo_manage");
+		exit(1);
+	}
+
 	if (uwsgi_fifo_table[(int) cmd]) {
 		uwsgi_fifo_table[(int) cmd](0);
 	}