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Date: Sat, 22 Aug 2026 00:35:02 +0100
From: Jonathan Cameron <jic23@kernel.org>
To: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: linux-iio@vger.kernel.org, Jinseob Kim <kimjinseob88@gmail.com>, Joshua
 Crofts <joshua.crofts1@gmail.com>, Sanjay Chitroda
 <sanjayembeddedse@gmail.com>, David Lechner <dlechner@baylibre.com>, Nuno
 =?UTF-8?B?U8Oh?= <nuno.sa@analog.com>, Andy Shevchenko <andy@kernel.org>,
 sashiko-bot@kernel.org, Jonathan Cameron
 <jonathan.cameron@oss.qualcomm.com>
Subject: Re: [PATCH v2] iio: buffer: Ensure bounce buffer used for unaligned
 case is zeroed.
Message-ID: <20260822003502.79b9207d@jic23-huawei>
In-Reply-To: <anr6TMSfdmjQk3Oa@ashevche-desk.local>
References: <20260803012224.219493-1-jic23@kernel.org>
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On Tue, 11 Aug 2026 13:32:44 +0300
Andy Shevchenko <andriy.shevchenko@intel.com> wrote:

> On Mon, Aug 03, 2026 at 02:22:24AM +0100, Jonathan Cameron wrote:
> 
> > iio_push_to_buffers_with_ts_unaligned() leaks uninitialized heap memory
> > to userspace if the data passed in is not a multiple of 8 bytes and the
> > timestamp is enabled. Specify __GFP_ZERO for the devm_krealloc()
> > to ensure any extra space is cleared.  
> 
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
> 
Applied to the fixes-togreg branch of iio.git and marked for stable.

Usual stuff about rebasing on rc1 etc apply

J