lkml.org 
[lkml]   [2019]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.4 regression fix] x86/boot: Provide memzero_explicit
Date
The purgatory code now uses the shared lib/crypto/sha256.c sha256
implementation. This needs memzero_explicit, implement this.

Reported-by: Arvind Sankar <nivedita@alum.mit.edu>
Fixes: 906a4bb97f5d ("crypto: sha256 - Use get/put_unaligned_be32 to get input, memzero_explicit")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
arch/x86/boot/compressed/string.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/x86/boot/compressed/string.c b/arch/x86/boot/compressed/string.c
index 81fc1eaa3229..511332e279fe 100644
--- a/arch/x86/boot/compressed/string.c
+++ b/arch/x86/boot/compressed/string.c
@@ -50,6 +50,11 @@ void *memset(void *s, int c, size_t n)
return s;
}

+void memzero_explicit(void *s, size_t count)
+{
+ memset(s, 0, count);
+}
+
void *memmove(void *dest, const void *src, size_t n)
{
unsigned char *d = dest;
--
2.23.0
\
 
 \ /
  Last update: 2019-10-07 10:55    [W:0.032 / U:0.764 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site