Add missing alignment check in arch/score sys_mmap()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files 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