efivar/SOURCES/0026-makeguids-initialize-m...

28 lines
882 B
Diff

From 50d7b979d1aa1c4afbb60a702bd16f9ff3066c50 Mon Sep 17 00:00:00 2001
From: "Bernhard M. Wiedemann" <bwiedemann@suse.de>
Date: Tue, 24 Jul 2018 09:34:21 +0200
Subject: [PATCH 26/39] makeguids: initialize memory
so that we do not write uninitialized memory into guids.bin and names.bin
which made the resulting libefivar.so.1.36 unreproducible.
See https://reproducible-builds.org/ for why this matters.
---
src/makeguids.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/makeguids.c b/src/makeguids.c
index f84fbb81166..a15356b152e 100644
--- a/src/makeguids.c
+++ b/src/makeguids.c
@@ -147,6 +147,7 @@ main(int argc, char *argv[])
outbuf = realloc(outbuf, line * sizeof (struct guidname));
if (!outbuf)
err(1, "makeguids");
+ memset(outbuf + line - 1, 0, sizeof(struct guidname));
char *symbol = strchr(guidstr, '\t');
if (symbol == NULL)
--
2.17.1