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From: Vasily Averin <vvs@sw.ru>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 2.4] random poolsize sysctl fix
Date: Fri, 20 May 2005 09:32:48 +0400	[thread overview]
Message-ID: <428D7680.5040304@sw.ru> (raw)

[-- Attachment #1: Type: text/plain, Size: 403 bytes --]

Hello Marcelo,

SWSoft Linux kernel Team has discovered that your patch 
http://linux.bkbits.net:8080/linux-2.4/gnupatch@41e2c4fetTJmVti-Xxql21xXjfbpag
which should fix a random poolsize sysctl handler integer overflow, is 
wrong.
You have changed a variable definition in function proc_do_poolsize(), 
but you had to fix an another function, poolsize_strategy()

Vasily Averin
SWSoft Linux kernel Team

[-- Attachment #2: diff-security-rndpoolsize-20050520 --]
[-- Type: text/plain, Size: 630 bytes --]

--- ./drivers/char/random.c.rndps	Wed Jan 19 17:09:48 2005
+++ ./drivers/char/random.c	Fri May 20 09:09:18 2005
@@ -1771,7 +1771,7 @@ static int change_poolsize(int poolsize)
 static int proc_do_poolsize(ctl_table *table, int write, struct file *filp,
 			    void *buffer, size_t *lenp)
 {
-	unsigned int	ret;
+	int	ret;
 
 	sysctl_poolsize = random_state->poolinfo.POOLBYTES;
 
@@ -1787,7 +1787,7 @@ static int poolsize_strategy(ctl_table *
 			     void *oldval, size_t *oldlenp,
 			     void *newval, size_t newlen, void **context)
 {
-	int	len;
+	unsigned int	len;
 	
 	sysctl_poolsize = random_state->poolinfo.POOLBYTES;
 

             reply	other threads:[~2005-05-20  5:33 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-20  5:32 Vasily Averin [this message]
2005-05-20 10:53 ` [PATCH 2.4] random poolsize sysctl fix Marcelo Tosatti

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