From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:46130 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751723AbcKFL4x (ORCPT ); Sun, 6 Nov 2016 06:56:53 -0500 Subject: Patch "i2c: xgene: Avoid dma_buffer overrun" has been added to the 4.8-stable tree To: hotran@apm.com, gregkh@linuxfoundation.org, phil_gjouf_endecott@chezphil.org, wsa@the-dreams.de Cc: , From: Date: Sun, 06 Nov 2016 12:56:51 +0100 Message-ID: <147843341122167@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 i2c: xgene: Avoid dma_buffer overrun to the 4.8-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: i2c-xgene-avoid-dma_buffer-overrun.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 603616017c35f4d0fbdbcace72adf9bf949c4a65 Mon Sep 17 00:00:00 2001 From: Hoan Tran Date: Mon, 10 Oct 2016 10:13:10 -0700 Subject: i2c: xgene: Avoid dma_buffer overrun From: Hoan Tran commit 603616017c35f4d0fbdbcace72adf9bf949c4a65 upstream. SMBus block command uses the first byte of buffer for the data length. The dma_buffer should be increased by 1 to avoid the overrun issue. Reported-by: Phil Endecott Signed-off-by: Hoan Tran Signed-off-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman --- drivers/i2c/busses/i2c-xgene-slimpro.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/i2c/busses/i2c-xgene-slimpro.c +++ b/drivers/i2c/busses/i2c-xgene-slimpro.c @@ -105,7 +105,7 @@ struct slimpro_i2c_dev { struct mbox_chan *mbox_chan; struct mbox_client mbox_client; struct completion rd_complete; - u8 dma_buffer[I2C_SMBUS_BLOCK_MAX]; + u8 dma_buffer[I2C_SMBUS_BLOCK_MAX + 1]; /* dma_buffer[0] is used for length */ u32 *resp_msg; }; Patches currently in stable-queue which might be from hotran@apm.com are queue-4.8/i2c-xgene-avoid-dma_buffer-overrun.patch