linux-kernel - [PATCH] iommu: exynos: Fix out of bound array access

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: <1364451550.4448.1.camel@phoenix>
Date:	Thu, 28 Mar 2013 14:19:10 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Kukjin Kim <kgene.kim@...sung.com>
Cc:	Joerg Roedel <joerg.roedel@....com>,
	KyongHo Cho <pullip.cho@...sung.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] iommu: exynos: Fix out of bound array access

In the case of no-match in "for (i = 0; i < (pdev->num_resources / 2); i++)",
i is "pdev->num_resources / 2". Fix the boundary checking to avoid the out of
bound array access for data->sfrbases[i].

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/iommu/exynos-iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 238a3ca..de04e6a 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -357,7 +357,7 @@ static irqreturn_t exynos_sysmmu_irq(int irq, void *dev_id)
 			break;
 	}
 
-	if (i == pdev->num_resources) {
+	if (i == pdev->num_resources / 2) {
 		itype = SYSMMU_FAULT_UNKNOWN;
 	} else {
 		itype = (enum exynos_sysmmu_inttype)
-- 
1.7.10.4



--
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/