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Subject: media: i2c: max9286: fix access to unallocated memory Author: Tomi Valkeinen tomi.valkeinen@ideasonboard.com Date: Mon Jan 18 09:14:46 2021 +0100

The asd allocated with v4l2_async_notifier_add_fwnode_subdev() must be of size max9286_asd, otherwise access to max9286_asd->source will go to unallocated memory.

Fixes: 86d37bf31af6 ("media: i2c: max9286: Allocate v4l2_async_subdev dynamically") Signed-off-by: Tomi Valkeinen tomi.valkeinen@ideasonboard.com Cc: stable@vger.kernel.org # v5.10+ Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Reviewed-by: Kieran Bingham kieran.bingham+renesas@ideasonboard.com Tested-by: Kieran Bingham kieran.bingham+renesas@ideasonboard.com Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org

drivers/media/i2c/max9286.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

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diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c index c82c1493e099..b1e2476d3c9e 100644 --- a/drivers/media/i2c/max9286.c +++ b/drivers/media/i2c/max9286.c @@ -580,7 +580,7 @@ static int max9286_v4l2_notifier_register(struct max9286_priv *priv)

asd = v4l2_async_notifier_add_fwnode_subdev(&priv->notifier, source->fwnode, - sizeof(*asd)); + sizeof(struct max9286_asd)); if (IS_ERR(asd)) { dev_err(dev, "Failed to add subdev for source %u: %ld", i, PTR_ERR(asd));