From: Robert Spalek <robert@ucw.cz>
Date: Wed, 23 Jun 2004 17:09:37 +0000 (+0000)
Subject: hmm, if we use fast unaligned access when decompressing, we should allocate 3
X-Git-Tag: holmes-import~1040
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=f5cf4714afb910e52ab50fc2d0bb218813d51f71;p=libucw.git

hmm, if we use fast unaligned access when decompressing, we should allocate 3
more bytes after the memory
---

diff --git a/lib/lizard-safe.c b/lib/lizard-safe.c
index c615acc4..6bba2544 100644
--- a/lib/lizard-safe.c
+++ b/lib/lizard-safe.c
@@ -53,7 +53,7 @@ lizard_decompress_safe(byte *in, struct lizard_buffer *buf, uns expected_length)
    * is caught in the case of buffer-overflow.  The function is not re-entrant
    * because of a static longjmp handler.  */
 {
-  uns lock_offset = ALIGN(expected_length, PAGE_SIZE);
+  uns lock_offset = ALIGN(expected_length + 3, PAGE_SIZE);	// +3 due to the unaligned access
   if (lock_offset > buf->len)
   {
     errno = EFBIG;