4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit 917400cecb4b52b5cde5417348322bb9c8272fa6 upstream.
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/sparc/include/asm/uaccess_32.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -328,8 +328,10 @@ static inline unsigned long copy_from_us
{
if (n && __access_ok((unsigned long) from, n))
return __copy_user((__force void __user *) to, from, n);
- else
+ else {
+ memset(to, 0, n);
return n;
+ }
}
static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
--
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