From 64486697771cbe219fffcb5c8e2ed9ca4fdf086c Mon Sep 17 00:00:00 2001
From: Xi Wang <xi.wang@gmail.com>
Date: Thu, 16 Feb 2012 11:55:48 -0500
Subject: [PATCH] libceph: fix overflow check in crush_decode()

The existing overflow check (n > ULONG_MAX / b) didn't work, because
n = ULONG_MAX / b would both bypass the check and still overflow the
allocation size a + n * b.

The correct check should be (n > (ULONG_MAX - a) / b).

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
---
Reading git-format-patch failed