linux-kernel - [patch] off by one bug

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]

Message-ID: <20100103121451.GA21064@bicker>
Date:	Sun, 3 Jan 2010 14:14:51 +0200
From:	Dan Carpenter <error27@...il.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [patch] off by one bug

if irq == PCF50633_NUM_IRQ that puts us past the end of the array.

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

--- orig/drivers/mfd/pcf50633-core.c	2010-01-03 14:10:10.000000000 +0200
+++ devel/drivers/mfd/pcf50633-core.c	2010-01-03 14:10:31.000000000 +0200
@@ -217,7 +217,7 @@ static struct attribute_group pcf_attr_g
 int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
 			void (*handler) (int, void *), void *data)
 {
-	if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler)
+	if (irq < 0 || irq >= PCF50633_NUM_IRQ || !handler)
 		return -EINVAL;
 
 	if (WARN_ON(pcf->irq_handler[irq].handler))
@@ -234,7 +234,7 @@ EXPORT_SYMBOL_GPL(pcf50633_register_irq)
 
 int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
 {
-	if (irq < 0 || irq > PCF50633_NUM_IRQ)
+	if (irq < 0 || irq >= PCF50633_NUM_IRQ)
 		return -EINVAL;
 
 	mutex_lock(&pcf->lock);
--
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/