linux-stable.git/drivers/media, branch v6.9.7

media: mtk-vcodec: potential null pointer deference in SCP

2024-06-27T11:52:16+00:00

[ Upstream commit 53dbe08504442dc7ba4865c09b3bbf5fe849681b ]

The return value of devm_kzalloc() needs to be checked to avoid
NULL pointer deference. This is similar to CVE-2022-3113.

Link: https://lore.kernel.org/linux-media/PH7PR20MB5925094DAE3FD750C7E39E01BF712@PH7PR20MB5925.namprd20.prod.outlook.com
Signed-off-by: Fullway Wang 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Sasha Levin

media: intel/ipu6: Fix build with !ACPI

2024-06-27T11:52:16+00:00

[ Upstream commit 8810e055b57543f3465cf3c15ba4980f9f14a84e ]

Modify the code so it can be compiled tested in configurations that do
not have ACPI enabled.

It fixes the following errors:
drivers/media/pci/intel/ipu-bridge.c:103:30: error: implicit declaration of function ‘acpi_device_handle’; did you mean ‘acpi_fwnode_handle’? [-Werror=implicit-function-declaration]
drivers/media/pci/intel/ipu-bridge.c:103:30: warning: initialization of ‘acpi_handle’ {aka ‘void *’} from ‘int’ makes pointer from integer without a cast [-Wint-conversion]
drivers/media/pci/intel/ipu-bridge.c:110:17: error: implicit declaration of function ‘for_each_acpi_dev_match’ [-Werror=implicit-function-declaration]
drivers/media/pci/intel/ipu-bridge.c:110:74: error: expected ‘;’ before ‘for_each_acpi_consumer_dev’
drivers/media/pci/intel/ipu-bridge.c:104:29: warning: unused variable ‘consumer’ [-Wunused-variable]
drivers/media/pci/intel/ipu-bridge.c:103:21: warning: unused variable ‘handle’ [-Wunused-variable]
drivers/media/pci/intel/ipu-bridge.c:166:38: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:185:43: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:191:30: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:196:30: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:202:30: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:223:31: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:236:18: error: implicit declaration of function ‘acpi_get_physical_device_location’ [-Werror=implicit-function-declaration]
drivers/media/pci/intel/ipu-bridge.c:236:56: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:238:31: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:256:31: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:275:31: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:280:30: error: invalid use of undefined type ‘struct acpi_device’
drivers/media/pci/intel/ipu-bridge.c:469:26: error: implicit declaration of function ‘acpi_device_hid’; did you mean ‘dmi_device_id’? [-Werror=implicit-function-declaration]
drivers/media/pci/intel/ipu-bridge.c:468:74: warning: format ‘%s’ expects argument of type ‘char *’, but argument 4 has type ‘int’ [-Wformat=]
drivers/media/pci/intel/ipu-bridge.c:637:58: error: expected ‘;’ before ‘{’ token
drivers/media/pci/intel/ipu-bridge.c:696:1: warning: label ‘err_put_adev’ defined but not used [-Wunused-label]
drivers/media/pci/intel/ipu-bridge.c:693:1: warning: label ‘err_put_ivsc’ defined but not used [-Wunused-label]
drivers/media/pci/intel/ipu-bridge.c:691:1: warning: label ‘err_free_swnodes’ defined but not used [-Wunused-label]
drivers/media/pci/intel/ipu-bridge.c:632:40: warning: unused variable ‘primary’ [-Wunused-variable]
drivers/media/pci/intel/ipu-bridge.c:632:31: warning: unused variable ‘fwnode’ [-Wunused-variable]
drivers/media/pci/intel/ipu-bridge.c:733:73: error: expected ‘;’ before ‘{’ token
drivers/media/pci/intel/ipu-bridge.c:725:24: warning: unused variable ‘csi_dev’ [-Wunused-variable]
drivers/media/pci/intel/ipu-bridge.c:724:43: warning: unused variable ‘adev’ [-Wunused-variable]
drivers/media/pci/intel/ipu-bridge.c:599:12: warning: ‘ipu_bridge_instantiate_ivsc’ defined but not used [-Wunused-function]
drivers/media/pci/intel/ipu-bridge.c:444:13: warning: ‘ipu_bridge_create_connection_swnodes’ defined but not used [-Wunused-function]
drivers/media/pci/intel/ipu-bridge.c:297:13: warning: ‘ipu_bridge_create_fwnode_properties’ defined but not used [-Wunused-function]
drivers/media/pci/intel/ipu-bridge.c:155:12: warning: ‘ipu_bridge_check_ivsc_dev’ defined but not used [-Wunused-function]

Signed-off-by: Ricardo Ribalda 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Sasha Levin

media: v4l: async: Fix notifier list entry init

2024-06-16T11:50:59+00:00

commit 6d8acd02c4c6a8f917eefac1de2e035521ca119d upstream.

struct v4l2_async_notifier has several list_head members, but only
waiting_list and done_list are initialized. notifier_entry was kept
'zeroed' leading to an uninitialized list_head.
This results in a NULL-pointer dereference if csi2_async_register() fails,
e.g. node for remote endpoint is disabled, and returns -ENOTCONN.
The following calls to v4l2_async_nf_unregister() results in a NULL
pointer dereference.
Add the missing list head initializer.

Fixes: b8ec754ae4c5 ("media: v4l: async: Set v4l2_device and subdev in async notifier init")
Cc:  # for 6.6 and later
Signed-off-by: Alexander Stein 
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil 
Signed-off-by: Greg Kroah-Hartman

media: v4l: async: Don't set notifier's V4L2 device if registering fails

2024-06-16T11:50:59+00:00

commit 46bc0234ad38063ce550ecf135c1a52458f0a804 upstream.

The V4L2 device used to be set when the notifier was registered but this
has been moved to the notifier initialisation. Don't touch the V4L2 device
if registration fails.

Fixes: b8ec754ae4c5 ("media: v4l: async: Set v4l2_device and subdev in async notifier init")
Cc:  # for 6.6 and later
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil 
Signed-off-by: Greg Kroah-Hartman

media: v4l: async: Properly re-initialise notifier entry in unregister

2024-06-16T11:50:59+00:00

commit 9537a8425a7a0222999d5839a0b394b1e8834b4a upstream.

The notifier_entry of a notifier is not re-initialised after unregistering
the notifier. This leads to dangling pointers being left there so use
list_del_init() to return the notifier_entry an empty list.

Fixes: b8ec754ae4c5 ("media: v4l: async: Set v4l2_device and subdev in async notifier init")
Cc:  # for 6.6 and later
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil 
Signed-off-by: Greg Kroah-Hartman

media: ov2740: Fix LINK_FREQ and PIXEL_RATE control value reporting

2024-06-16T11:50:59+00:00

commit f7aa5995910cb5e7a5419c6705f465c55973b714 upstream.

The driver dug the supported link frequency up from the V4L2 fwnode
endpoint and used it internally, but failed to report this in the
LINK_FREQ and PIXEL_RATE controls. Fix this.

Fixes: 0677a2d9b735 ("media: ov2740: Add support for 180 MHz link frequency")
Cc: stable@vger.kernel.org # for v6.8 and later
Signed-off-by: Sakari Ailus 
Reviewed-by: Hans de Goede 
Reviewed-by: Bingbu Cao 
Signed-off-by: Hans Verkuil 
Signed-off-by: Greg Kroah-Hartman

media: v4l2-core: hold videodev_lock until dev reg, finishes

2024-06-16T11:50:59+00:00

commit 1ed4477f2ea4743e7c5e1f9f3722152d14e6eeb1 upstream.

After the new V4L2 device node was registered, some additional
initialization was done before the device node was marked as
'registered'. During the time between creating the device node
and marking it as 'registered' it was possible to open the
device node, which would return -ENODEV since the 'registered'
flag was not yet set.

Hold the videodev_lock mutex from just before the device node
is registered until the 'registered' flag is set. Since v4l2_open
will take the same lock, it will wait until this registration
process is finished. This resolves this race condition.

Signed-off-by: Hans Verkuil 
Reviewed-by: Sakari Ailus 
Cc:       # for vi4.18 and up
Signed-off-by: Greg Kroah-Hartman

media: mxl5xx: Move xpt structures off stack

2024-06-16T11:50:59+00:00

commit 526f4527545b2d4ce0733733929fac7b6da09ac6 upstream.

When building for LoongArch with clang 18.0.0, the stack usage of
probe() is larger than the allowed 2048 bytes:

  drivers/media/dvb-frontends/mxl5xx.c:1698:12: warning: stack frame size (2368) exceeds limit (2048) in 'probe' [-Wframe-larger-than]
   1698 | static int probe(struct mxl *state, struct mxl5xx_cfg *cfg)
        |            ^
  1 warning generated.

This is the result of the linked LLVM commit, which changes how the
arrays of structures in config_ts() get handled with
CONFIG_INIT_STACK_ZERO and CONFIG_INIT_STACK_PATTERN, which causes the
above warning in combination with inlining, as config_ts() gets inlined
into probe().

This warning can be easily fixed by moving the array of structures off
of the stackvia 'static const', which is a better location for these
variables anyways because they are static data that is only ever read
from, never modified, so allocating the stack space is wasteful.

This drops the stack usage from 2368 bytes to 256 bytes with the same
compiler and configuration.

Link: https://lore.kernel.org/linux-media/20240111-dvb-mxl5xx-move-structs-off-stack-v1-1-ca4230e67c11@kernel.org
Cc: stable@vger.kernel.org
Closes: https://github.com/ClangBuiltLinux/linux/issues/1977
Link: https://github.com/llvm/llvm-project/commit/afe8b93ffdfef5d8879e1894b9d7dda40dee2b8d
Signed-off-by: Nathan Chancellor 
Reviewed-by: Miguel Ojeda 
Tested-by: Miguel Ojeda 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

media: mc: mark the media devnode as registered from the, start

2024-06-16T11:50:59+00:00

commit 4bc60736154bc9e0e39d3b88918f5d3762ebe5e0 upstream.

First the media device node was created, and if successful it was
marked as 'registered'. This leaves a small race condition where
an application can open the device node and get an error back
because the 'registered' flag was not yet set.

Change the order: first set the 'registered' flag, then actually
register the media device node. If that fails, then clear the flag.

Signed-off-by: Hans Verkuil 
Acked-by: Sakari Ailus 
Reviewed-by: Laurent Pinchart 
Fixes: cf4b9211b568 ("[media] media: Media device node support")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus 
Signed-off-by: Greg Kroah-Hartman

media: mc: Fix graph walk in media_pipeline_start

2024-06-16T11:50:58+00:00

commit 8a9d420149c477e7c97fbd6453704e4612bdd3fa upstream.

The graph walk tries to follow all links, even if they are not between
pads. This causes a crash with, e.g. a MEDIA_LNK_FL_ANCILLARY_LINK link.

Fix this by allowing the walk to proceed only for MEDIA_LNK_FL_DATA_LINK
links.

Signed-off-by: Tomi Valkeinen 
Cc: stable@vger.kernel.org # for 6.1 and later
Fixes: ae219872834a ("media: mc: entity: Rewrite media_pipeline_start()")
Signed-off-by: Sakari Ailus 
Signed-off-by: Hans Verkuil 
Signed-off-by: Greg Kroah-Hartman