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

From: Shailendra Verma
Date: Mon Nov 09 2015 - 02:59:38 EST


From: Shailendra Verma <Shailendra.v@xxxxxxxxxxx>

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@xxxxxxxxxxx>
Reviewed-by: Ravikant Bijendra Sharma <ravikant.s2@xxxxxxxxxxx>
---
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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