blob: 5ac8f6691fabfbd7b3f990b5e8c94aac14ae9724 (
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
|
From 8301a21773ef61656225e264f4f06ae14462bca7 Mon Sep 17 00:00:00 2001
From: Jasper Lievisse Adriaanse <j@jasper.la>
Date: Fri, 26 Feb 2021 15:21:20 +0100
Subject: [PATCH] Fix potential memory corruption with negative memmove() size
Upstream-Status: Backport
https://github.com/lz4/lz4/commit/8301a21773ef61656225e264f4f06ae14462bca7#diff-7055e9cf14c488aea9837aaf9f528b58ee3c22988d7d0d81d172ec62d94a88a7
CVE: CVE-2021-3520
Signed-off-by: Armin Kuster <akuster@mvista.com>
---
lib/lz4.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: git/lib/lz4.c
===================================================================
--- git.orig/lib/lz4.c
+++ git/lib/lz4.c
@@ -1665,7 +1665,7 @@ LZ4_decompress_generic(
const size_t dictSize /* note : = 0 if noDict */
)
{
- if (src == NULL) { return -1; }
+ if ((src == NULL) || (outputSize < 0)) { return -1; }
{ const BYTE* ip = (const BYTE*) src;
const BYTE* const iend = ip + srcSize;
|
