From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: hans@jjverkuil.nl, laurent.pinchart@ideasonboard.com,
Prabhakar <prabhakar.csengg@gmail.com>,
"Kate Hsuan" <hpa@redhat.com>,
"Dave Stevenson" <dave.stevenson@raspberrypi.com>,
"Tommaso Merciai" <tomm.merciai@gmail.com>,
"Benjamin Mugnier" <benjamin.mugnier@foss.st.com>,
"Sylvain Petinot" <sylvain.petinot@foss.st.com>,
"Christophe JAILLET" <christophe.jaillet@wanadoo.fr>,
"Julien Massot" <julien.massot@collabora.com>,
"Naushir Patuck" <naush@raspberrypi.com>,
"Yan, Dongcheng" <dongcheng.yan@intel.com>,
"Stefan Klug" <stefan.klug@ideasonboard.com>,
"Mirela Rabulea" <mirela.rabulea@nxp.com>,
"André Apitzsch" <git@apitzsch.eu>,
"Heimir Thor Sverrisson" <heimir.sverrisson@gmail.com>,
"Kieran Bingham" <kieran.bingham@ideasonboard.com>,
"Mehdi Djait" <mehdi.djait@linux.intel.com>,
"Ricardo Ribalda Delgado" <ribalda@kernel.org>,
"Hans de Goede" <hansg@kernel.org>,
"Jacopo Mondi" <jacopo.mondi@ideasonboard.com>,
"Tomi Valkeinen" <tomi.valkeinen@ideasonboard.com>,
"David Plowman" <david.plowman@raspberrypi.com>,
"Yu, Ong Hock" <ong.hock.yu@intel.com>,
"Ng, Khai Wen" <khai.wen.ng@intel.com>,
"Jai Luthra" <jai.luthra@ideasonboard.com>,
"Rishikesh Donadkar" <r-donadkar@ti.com>,
"Mattijs Korpershoek" <mkorpershoek@kernel.org>,
"Antti Laakso" <antti.laakso@linux.intel.com>
Subject: [PATCH 1/1] media: subdev: Make get_fmt on INTERNAL pads without STREAMS an error
Date: Tue, 6 Oct 2026 12:29:50 +0300 [thread overview]
Message-ID: <20261006092950.690101-1-sakari.ailus@linux.intel.com> (raw)
Internal pads should only be accessible to file handles with
V4L2_SUBDEV_CLIENT_CAP_STREAMS flag set. Return an error otherwise.
Fixes: 49cdf56876d3 ("media: mc: Add INTERNAL pad flag")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
drivers/media/v4l2-core/v4l2-subdev.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index a07d77e584c3..7cb5a40f0f8c 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -854,8 +854,13 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
case VIDIOC_SUBDEV_G_FMT: {
struct v4l2_subdev_format *format = arg;
- if (!client_supports_streams)
+ if (!client_supports_streams) {
+ if (format->pad < sd->entity.num_pads &&
+ sd->entity.pads[format->pad].flags & MEDIA_PAD_FL_INTERNAL)
+ return -EINVAL;
+
format->stream = 0;
+ }
memset(format->reserved, 0, sizeof(format->reserved));
memset(format->format.reserved, 0, sizeof(format->format.reserved));
--
2.47.3
next reply other threads:[~2026-10-06 9:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-06 9:29 Sakari Ailus [this message]
2026-10-07 9:43 ` [PATCH 1/1] media: subdev: Make get_fmt on INTERNAL pads without STREAMS an error Hans Verkuil
2026-10-07 9:48 ` Sakari Ailus
2026-10-07 10:14 ` Hans Verkuil
2026-10-08 12:26 ` Sakari Ailus
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