From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bart Van Assche , Al Viro Subject: [PATCH 4.13 002/109] : Fix copy_in_user() declaration Date: Sun, 24 Sep 2017 22:32:23 +0200 Message-Id: <20170924203353.208213686@linuxfoundation.org> In-Reply-To: <20170924203353.104695385@linuxfoundation.org> References: <20170924203353.104695385@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.13-stable review patch. If anyone has any objections, please let me know. ------------------ From: Bart Van Assche commit f58e76c1c551c7577b25a6fe493d82f5214331b7 upstream. copy_in_user() copies data from user-space address @from to user- space address @to. Hence declare both @from and @to as user-space pointers. Fixes: commit d597580d3737 ("generic ...copy_..._user primitives") Signed-off-by: Bart Van Assche Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman --- include/linux/uaccess.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -156,7 +156,7 @@ copy_to_user(void __user *to, const void } #ifdef CONFIG_COMPAT static __always_inline unsigned long __must_check -copy_in_user(void __user *to, const void *from, unsigned long n) +copy_in_user(void __user *to, const void __user *from, unsigned long n) { might_fault(); if (access_ok(VERIFY_WRITE, to, n) && access_ok(VERIFY_READ, from, n))