linux-kernel - [PATCH] arch:arm:mm:Correction in the boundary check for module end address.

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Message-id: <1447055848-28180-1-git-send-email-shailendra.v@samung.com>
Date:	Mon, 09 Nov 2015 13:27:28 +0530
From:	Shailendra Verma <shailendra.v@...ung.com>
To:	Russell King <linux@....linux.org.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arve Hjønnevåg <arve@...roid.com>,
	Riley Andrews <riandrews@...roid.com>,
	Laura Abbott <lauraa@...eaurora.org>,
	Jungseung Lee <js07.lee@...il.com>,
	Shailendra Verma <shailendra.capricorn@...il.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Mitchel Humpherys <mitchelh@...eaurora.org>,
	Sumit Semwal <sumit.semwal@...aro.org>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Gioh Kim <gioh.kim@....com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Shawn Lin <shawn.lin@...k-chips.com>,
	Markus Elfring <elfring@...rs.sourceforge.net>,
	linux-arm-kernel@...ts.infradead.org, devel@...verdev.osuosl.org
Cc:	Ravikant Bijendra Sharma <ravikant.s2@...sung.com>,
	Shailendra Verma <shailendra.v@...sung.com>,
	linux-kernel@...r.kernel.org, vidushi.koul@...sung.com
Subject: [PATCH] arch:arm:mm:Correction in the boundary check for module end
 address.

From: Shailendra Verma <Shailendra.v@...sung.com>

The module end boundary check is not proper.The out of bound value
of module end can produce undesired results.

Signed-off-by: Shailendra Verma <Shailendra.v@...sung.com>
Reviewed-by: Ravikant Bijendra Sharma <ravikant.s2@...sung.com>
---
 linux-4.3-rc6/arch/arm/mm/pageattr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-4.3-rc6/arch/arm/mm/pageattr.c b/linux-4.3-rc6/arch/arm/mm/pageattr.c
index cf30daf..be7fe4b 100644
--- a/linux-4.3-rc6/arch/arm/mm/pageattr.c
+++ b/linux-4.3-rc6/arch/arm/mm/pageattr.c
@@ -52,7 +52,7 @@ static int change_memory_common(unsigned long addr, int numpages,
 	if (start < MODULES_VADDR || start >= MODULES_END)
 		return -EINVAL;
 
-	if (end < MODULES_VADDR || start >= MODULES_END)
+	if (end < MODULES_VADDR || end >= MODULES_END)
 		return -EINVAL;
 
 	data.set_mask = set_mask;
-- 
1.7.9.5

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