linux-kernel - [patch] off by one error in rioctrl.c

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Fri, 7 Aug 2009 14:10:45 +0200 (SAST)
From:	Dan Carpenter <error27@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: [patch] off by one error in rioctrl.c

I'm not sure who to send this to.

If DownLoad.ProductCode == MAX_PRODUCT, that would be a problem when we do 
RIOBootTable[DownLoad.ProductCode] a couple lines down.

Found by smatch (http://repo.or.cz/w/smatch.git).

regards,
dan carpenter


Signed-off-by: Dan Carpenter <error27@...il.com>

--- orig/drivers/char/rio/rioctrl.c	2009-08-03 21:44:01.000000000 +0200
+++ devel/drivers/char/rio/rioctrl.c	2009-08-03 21:44:26.000000000 +0200
@@ -873,7 +873,7 @@
 		/*
 		 ** It is important that the product code is an unsigned object!
 		 */
-		if (DownLoad.ProductCode > MAX_PRODUCT) {
+		if (DownLoad.ProductCode >= MAX_PRODUCT) {
 			rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Bad product code %d passed\n", DownLoad.ProductCode);
 			p->RIOError.Error = NO_SUCH_PRODUCT;
 			return -ENXIO;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/