1*4882a593SmuzhiyunFrom 8301a21773ef61656225e264f4f06ae14462bca7 Mon Sep 17 00:00:00 2001
2*4882a593SmuzhiyunFrom: Jasper Lievisse Adriaanse <j@jasper.la>
3*4882a593SmuzhiyunDate: Fri, 26 Feb 2021 15:21:20 +0100
4*4882a593SmuzhiyunSubject: [PATCH] Fix potential memory corruption with negative memmove() size
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunSigned-off-by: Peter Korsgaard <peter@korsgaard.com>
7*4882a593Smuzhiyun---
8*4882a593Smuzhiyun lib/lz4.c | 2 +-
9*4882a593Smuzhiyun 1 file changed, 1 insertion(+), 1 deletion(-)
10*4882a593Smuzhiyun
11*4882a593Smuzhiyundiff --git a/lib/lz4.c b/lib/lz4.c
12*4882a593Smuzhiyunindex 5f524d0..c2f504e 100644
13*4882a593Smuzhiyun--- a/lib/lz4.c
14*4882a593Smuzhiyun+++ b/lib/lz4.c
15*4882a593Smuzhiyun@@ -1749,7 +1749,7 @@ LZ4_decompress_generic(
16*4882a593Smuzhiyun                  const size_t dictSize         /* note : = 0 if noDict */
17*4882a593Smuzhiyun                  )
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun-    if (src == NULL) { return -1; }
20*4882a593Smuzhiyun+    if ((src == NULL) || (outputSize < 0)) { return -1; }
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun     {   const BYTE* ip = (const BYTE*) src;
23*4882a593Smuzhiyun         const BYTE* const iend = ip + srcSize;
24*4882a593Smuzhiyun--
25*4882a593Smuzhiyun2.20.1
26*4882a593Smuzhiyun
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