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media: i2c: max9286: fix access to unallocated memory

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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>
This commit is contained in:
Tomi Valkeinen 2021-01-18 09:14:46 +01:00 committed by Mauro Carvalho Chehab
parent c432147c77
commit e88ccf09e7
1 changed files with 1 additions and 1 deletions
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2
drivers/media/i2c/max9286.c
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@ -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));