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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-08-22 00:23:07 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-09-13 17:50:15 -0400 |
| commit | 917400cecb4b52b5cde5417348322bb9c8272fa6 (patch) | |
| tree | a2ef184f685b06359bfb6464668fadfa7fc308f0 | |
| parent | 6e050503a150b2126620c1a1e9b3a368fcd51eac (diff) | |
sparc32: fix copy_from_user()
Cc: stable@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | arch/sparc/include/asm/uaccess_32.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h index 341a5a133f48..035c89b7df5d 100644 --- a/arch/sparc/include/asm/uaccess_32.h +++ b/arch/sparc/include/asm/uaccess_32.h @@ -269,8 +269,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un if (!__builtin_constant_p(n)) check_object_size(to, n, false); 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) |