From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Sun, 24 Aug 2025 13:39:06 +0000 (-0400)
Subject: iio: light: as73211: Ensure buffer holes are zeroed
X-Git-Tag: v5.10.241~19
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fd441fd972067f80861a0b66605c0febb0d038dd;p=thirdparty%2Fkernel%2Fstable.git

iio: light: as73211: Ensure buffer holes are zeroed

[ Upstream commit 433b99e922943efdfd62b9a8e3ad1604838181f2 ]

Given that the buffer is copied to a kfifo that ultimately user space
can read, ensure we zero it.

Fixes: 403e5586b52e ("iio: light: as73211: New driver")
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250802164436.515988-2-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[ Adjust context ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/iio/light/as73211.c b/drivers/iio/light/as73211.c
index 76b334dc5fbf3..dfeaa786b148c 100644
--- a/drivers/iio/light/as73211.c
+++ b/drivers/iio/light/as73211.c
@@ -574,7 +574,7 @@ static irqreturn_t as73211_trigger_handler(int irq __always_unused, void *p)
 	struct {
 		__le16 chan[4];
 		s64 ts __aligned(8);
-	} scan;
+	} scan = { };
 	int data_result, ret;
 
 	mutex_lock(&data->mutex);