blob: c7d277a56231a9cfe0d656a7765276727076649a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
From c16bc057ba3f125051c9966cf1f5b68a05681de4 Mon Sep 17 00:00:00 2001
From: trylab <trylab@users.noreply.github.com>
Date: Tue, 6 Sep 2016 13:55:49 +0800
Subject: [PATCH] Fix an integer overflow issue (#809)
Prevent an integer overflow issue in function opj_pi_create_decode of
pi.c.
---
src/lib/openjp2/pi.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/lib/openjp2/pi.c b/src/lib/openjp2/pi.c
index cffad66..36e2ff0 100644
--- a/src/lib/openjp2/pi.c
+++ b/src/lib/openjp2/pi.c
@@ -1237,7 +1237,13 @@ opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
l_current_pi = l_pi;
/* memory allocation for include */
- l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
+ /* prevent an integer overflow issue */
+ l_current_pi->include = 00;
+ if (l_step_l <= (SIZE_MAX / (l_tcp->numlayers + 1U)))
+ {
+ l_current_pi->include = (OPJ_INT16*) opj_calloc((l_tcp->numlayers +1) * l_step_l, sizeof(OPJ_INT16));
+ }
+
if
(!l_current_pi->include)
{
--
2.10.0
|
