linux-kernel - [PATCH 2/9] irq: check domain hwirq range for DT translate

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

Message-Id: <1323876538-20406-3-git-send-email-robherring2@gmail.com>
Date:	Wed, 14 Dec 2011 09:28:51 -0600
From:	Rob Herring <robherring2@...il.com>
To:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org
Cc:	Grant Likely <grant.likely@...retlab.ca>, shawn.guo@...escale.com,
	Kukjin Kim <kgene.kim@...sung.com>,
	Kevin Hilman <khilman@...com>,
	Tony Lindgren <tony@...mide.com>,
	Barry Song <baohua.song@....com>,
	Linus Walleij <linus.ml.walleij@...il.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 2/9] irq: check domain hwirq range for DT translate

From: Rob Herring <rob.herring@...xeda.com>

A DT node may have more than 1 domain associated with it, so make sure
the hwirq number is within range when doing DT translation.

Signed-off-by: Rob Herring <rob.herring@...xeda.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
---
 kernel/irq/irqdomain.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 200ce83..ae6441e 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -135,6 +135,9 @@ int irq_domain_simple_dt_translate(struct irq_domain *d,
 		return -EINVAL;
 	if (intsize < 1)
 		return -EINVAL;
+	if ((intspec[0] < d->hwirq_base) ||
+	    (intspec[0] >= d->hwirq_base + d->nr_irq))
+		return -EINVAL;
 
 	*out_hwirq = intspec[0];
 	*out_type = IRQ_TYPE_NONE;
-- 
1.7.5.4

--
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/