From aa65607373a4daf2010e8c3867b6317619f3c1a3 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 11 Dec 2009 06:48:57 -0500
Subject: [PATCH] Add missing alignment check in arch/score sys_mmap()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
arch/score/kernel/sys_score.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c
index 3d6a67dd628c..856ed68a58e6 100644
--- a/arch/score/kernel/sys_score.c
+++ b/arch/score/kernel/sys_score.c
@@ -41,10 +41,11 @@ sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
asmlinkage long
sys_mmap(unsigned long addr, unsigned long len, unsigned long prot,
- unsigned long flags, unsigned long fd, off_t pgoff)
+ unsigned long flags, unsigned long fd, off_t offset)
{
- /* where's the alignment check? */
- return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
+ if (unlikely(offset & ~PAGE_MASK))
+ return -EINVAL;
+ return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
}
asmlinkage long
--
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