lkml.org 
[lkml]   [2007]   [Dec]   [15]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
DateFri, 14 Dec 2007 23:20:30 -0800 (PST)
FromMatti Linnanvuori <>
Subject/dev/urandom uses uninit bytes, leaks user data
From: Matti Linnanvuori <mattilinnnvuori@yahoo.com>

/dev/urandom use no uninit bytes, leak no user data

Signed-off-by: Matti Linnanvuori <mattilinnnvuori@yahoo.com>

---
--- a/drivers/char/random.c	2007-12-15 09:09:37.895414000 +0200
+++ b/drivers/char/random.c	2007-12-15 09:12:02.607831500 +0200
@@ -689,7 +689,7 @@ static ssize_t extract_entropy(struct en
  */
 static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 {
-	__u32 tmp[OUTPUT_POOL_WORDS];
+	static __u32 tmp[OUTPUT_POOL_WORDS];
 
 	if (r->pull && r->entropy_count < nbytes * 8 &&
 	    r->entropy_count < r->poolinfo->POOLBITS) {



      Machen Sie Yahoo! zu Ihrer Startseite. Los geht's: 
http://de.yahoo.com/set


\
 
 \ /
  Last update: 2007-12-15 08:29    [from the cache]
©2003-2008