linux-kernel - [PATCH] iommu: Initialize domain->handler in iommu_domain

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, 13 Dec 2011 16:14:26 +0900
From:	KyongHo Cho <pullip.cho@...sung.com>
To:	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Cc:	Joerg Roedel <joro@...tes.org>,
	Sanghyun Lee <sanghyun75.lee@...sung.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Younglak Kim <younglak1004.kim@...sung.com>,
	KyongHo Cho <pullip.cho@...sung.com>
Subject: [PATCH] iommu: Initialize domain->handler in iommu_domain_alloc()

Since it is not guaranteed that an iommu driver initializes in its
domain_init() function, it must be initialized with NULL to prevent
calling a function in an arbitrary location when iommu fault occurred.

Signed-off-by: KyongHo Cho <pullip.cho@...sung.com>
---
 drivers/iommu/iommu.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 7cc3c65..1afb896 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -148,6 +148,7 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
 		return NULL;
 
 	domain->ops = bus->iommu_ops;
+	domain->handler = NULL;
 
 	ret = domain->ops->domain_init(domain);
 	if (ret)
-- 
1.7.1

--
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/