netdev - [patch 1/4] hisax: timeout off by one in waitrecmsg()

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>] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 02 Feb 2010 14:43:44 -0800
From:	akpm@...ux-foundation.org
To:	isdn@...ux-pingi.de
Cc:	netdev@...r.kernel.org, akpm@...ux-foundation.org,
	roel.kluin@...il.com
Subject: [patch 1/4] hisax: timeout off by one in waitrecmsg()

From: Roel Kluin <roel.kluin@...il.com>

With `while (timeout++ < maxdelay)' timeout reaches maxdelay + 1 after the
loop This is probably unlikely a problem in practice.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
Cc: Karsten Keil <isdn@...ux-pingi.de>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 drivers/isdn/hisax/isar.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/isdn/hisax/isar.c~hisax-timeout-off-by-one-in-waitrecmsg drivers/isdn/hisax/isar.c
--- a/drivers/isdn/hisax/isar.c~hisax-timeout-off-by-one-in-waitrecmsg
+++ a/drivers/isdn/hisax/isar.c
@@ -138,7 +138,7 @@ waitrecmsg(struct IsdnCardState *cs, u_c
 	while((!(cs->BC_Read_Reg(cs, 0, ISAR_IRQBIT) & ISAR_IRQSTA)) &&
 		(timeout++ < maxdelay))
 		udelay(1);
-	if (timeout >= maxdelay) {
+	if (timeout > maxdelay) {
 		printk(KERN_WARNING"isar recmsg IRQSTA timeout\n");
 		return(0);
 	}
_
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html