media: vcodec: Fix potential array out-of-bounds in encoder queue_setup

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commit e7f2e65699 upstream.

variable *nplanes is provided by user via system call argument. The
possible value of q_data->fmt->num_planes is 1-3, while the value
of *nplanes can be 1-8. The array access by index i can cause array
out-of-bounds.

Fix this bug by checking *nplanes against the array size.

Fixes: 4e855a6efa ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver")
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Wei Chen 2023-08-10 08:23:33 +00:00 • committed by Greg Kroah-Hartman

parent 4919043ab9

commit fe04122b93

1 changed files with 2 additions and 0 deletions

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drivers/media/platform/mediatek/vcodec/mtk_vcodec_enc.c

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