1From 8301a21773ef61656225e264f4f06ae14462bca7 Mon Sep 17 00:00:00 2001
2From: Jasper Lievisse Adriaanse <j@jasper.la>
3Date: Fri, 26 Feb 2021 15:21:20 +0100
4Subject: [PATCH] Fix potential memory corruption with negative memmove() size
5
6Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
7---
8 lib/lz4.c | 2 +-
9 1 file changed, 1 insertion(+), 1 deletion(-)
10
11diff --git a/lib/lz4.c b/lib/lz4.c
12index 5f524d0..c2f504e 100644
13--- a/lib/lz4.c
14+++ b/lib/lz4.c
15@@ -1749,7 +1749,7 @@ LZ4_decompress_generic(
16                  const size_t dictSize         /* note : = 0 if noDict */
17                  )
18 {
19-    if (src == NULL) { return -1; }
20+    if ((src == NULL) || (outputSize < 0)) { return -1; }
21
22     {   const BYTE* ip = (const BYTE*) src;
23         const BYTE* const iend = ip + srcSize;
24--
252.20.1
26
27