From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sat, 24 Jan 2015 20:27:10 +0000 (+0100)
Subject: commands/verify: Fix sha1 context zeroing-out.
X-Git-Tag: 2.02-beta3~526
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37ba761b1cba6e210fa451a7f3dbd6e3dab58a65;p=thirdparty%2Fgrub.git

commands/verify: Fix sha1 context zeroing-out.

Current code doesn't zero-out context completely. It's a minor issue
really as sha1 init already takes care of initing the context.
---

diff --git a/grub-core/commands/verify.c b/grub-core/commands/verify.c
index d5995766b..656939189 100644
--- a/grub-core/commands/verify.c
+++ b/grub-core/commands/verify.c
@@ -308,7 +308,7 @@ grub_load_public_key (grub_file_t f)
       if (!sk)
 	goto fail;
 
-      grub_memset (fingerprint_context, 0, sizeof (fingerprint_context));
+      grub_memset (fingerprint_context, 0, GRUB_MD_SHA1->contextsize);
       GRUB_MD_SHA1->init (fingerprint_context);
       GRUB_MD_SHA1->write (fingerprint_context, "\x99", 1);
       len_be = grub_cpu_to_be16 (len);