From: Vladimir Serbinenko <phcoder@google.com>
Date: Wed, 30 Aug 2017 18:46:14 +0000 (+0200)
Subject: gzio: fix unaligned access
X-Git-Url: https://iam.tj/gitweb/gitweb.cgi?p=grub.git;a=commitdiff_plain;h=95acd4cbdac495c088fc3401fa365455f7039151

gzio: fix unaligned access
---

diff --git a/grub-core/io/gzio.c b/grub-core/io/gzio.c
index dcf3a8701..86ea8cfde 100644
--- a/grub-core/io/gzio.c
+++ b/grub-core/io/gzio.c
@@ -1116,7 +1116,7 @@ inflate_window (grub_gzio_t gzio)
 	  grub_uint32_t csum;
 
 	  gzio->hdesc->final (gzio->hcontext);
-	  csum = *(grub_uint32_t *)gzio->hdesc->read (gzio->hcontext);
+	  csum = grub_get_unaligned32 (gzio->hdesc->read (gzio->hcontext));
 	  csum = grub_be_to_cpu32 (csum);
 	  if (csum != gzio->orig_checksum)
 	    grub_error (GRUB_ERR_BAD_COMPRESSED_DATA,