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getentropy: fix UB if len==0
author
Bartosz Brachaczek
<b.brachaczek@gmail.com>
Thu, 16 Jul 2020 23:16:28 +0000
(
01:16
+0200)
committer
Rich Felker
<dalias@aerifal.cx>
Fri, 24 Jul 2020 18:54:40 +0000
(14:54 -0400)
if len==0, an uninitalized variable would be returned
src/misc/getentropy.c
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diff --git
a/src/misc/getentropy.c
b/src/misc/getentropy.c
index
d2f282c
..
651ea95
100644
(file)
--- a/
src/misc/getentropy.c
+++ b/
src/misc/getentropy.c
@@
-6,7
+6,7
@@
int getentropy(void *buffer, size_t len)
{
- int cs, ret;
+ int cs, ret
= 0
;
char *pos = buffer;
if (len > 256) {