linux-kernel - Re: [PATCH 1/2] tty: serial: msm_serial regression fix data corruption

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 25 Apr 2016 13:47:20 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Frank Rowand <frowand.list@...il.com>
Cc:	Andy Gross <andy.gross@...aro.org>,
	David Brown <david.brown@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	linux-soc@...r.kernel.org, linux-serial@...r.kernel.org,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	ivan.ivanov@...aro.org
Subject: Re: [PATCH 1/2] tty: serial: msm_serial regression fix data
 corruption

On 04/23, Frank Rowand wrote:
> From: Frank Rowand <frank.rowand@...sony.com>
> 
> Commit 3a878c430fd6 ("tty: serial: msm: Add TX DMA support") regression.
> The calculation of tx_count was moved from the old msm_handle_tx(),
> now renamed msm_handle_tx_pio(), to the new msm_handle_tx().  The
> move left out one size test.
> 
> The regression seen on the qcom-apq8074-dragonboard is dropped
> characters and corrupted characters (values greater than 0x7f)
> when DMA is not enabled.
> 
> Signed-off-by: Frank Rowand <frank.rowand@...sony.com>
> Cc: stable@...r.kernel.org
> ---

Reviewed-by: Stephen Boyd <sboyd@...eaurora.org>

Thanks for finding this!

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project