From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:56138 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752988AbeDIT7J (ORCPT ); Mon, 9 Apr 2018 15:59:09 -0400 Subject: Patch "bna: Avoid reading past end of buffer" has been added to the 4.9-stable tree To: keescook@chromium.org, alexander.levin@microsoft.com, danielmicay@gmail.com, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 09 Apr 2018 21:57:45 +0200 Message-ID: <1523303865126194@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled bna: Avoid reading past end of buffer to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: bna-avoid-reading-past-end-of-buffer.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Mon Apr 9 17:09:24 CEST 2018 From: Kees Cook Date: Fri, 5 May 2017 15:25:32 -0700 Subject: bna: Avoid reading past end of buffer From: Kees Cook [ Upstream commit 9e4eb1ce472fbf7b007f23c88ec11c37265e401c ] Using memcpy() from a string that is shorter than the length copied means the destination buffer is being filled with arbitrary data from the kernel rodata segment. Instead, use strncpy() which will fill the trailing bytes with zeros. This was found with the future CONFIG_FORTIFY_SOURCE feature. Cc: Daniel Micay Signed-off-by: Kees Cook Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/brocade/bna/bfa_ioc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/brocade/bna/bfa_ioc.c +++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.c @@ -2845,7 +2845,7 @@ bfa_ioc_get_adapter_optrom_ver(struct bf static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer) { - memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN); + strncpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN); } static void Patches currently in stable-queue which might be from keescook@chromium.org are queue-4.9/qlge-avoid-reading-past-end-of-buffer.patch queue-4.9/pidns-disable-pid-allocation-if-pid_ns_prepare_proc-is-failed-in-alloc_pid.patch queue-4.9/x86-mm-kaslr-use-the-_asm_mul-macro-for-multiplication-to-work-around-clang-incompatibility.patch queue-4.9/ray_cs-avoid-reading-past-end-of-buffer.patch queue-4.9/x86-boot-declare-error-as-noreturn.patch queue-4.9/selftests-kselftest_harness-fix-compile-warning.patch queue-4.9/bna-avoid-reading-past-end-of-buffer.patch