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Subject: media: i2c: max9286: fix access to unallocated memory
Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v5.10+
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Tested-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
drivers/media/i2c/max9286.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
---
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));
