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Subject: media: vivid: free bitmap_cap when updating std/timings/etc. Author: Hans Verkuil hverkuil-cisco@xs4all.nl Date: Fri Nov 9 08:37:44 2018 -0500

When vivid_update_format_cap() is called it should free any overlay bitmap since the compose size will change.

Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Reported-by: syzbot+0cc8e3cc63ca373722c6@syzkaller.appspotmail.com Cc: stable@vger.kernel.org # for v3.18 and up Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org

drivers/media/platform/vivid/vivid-vid-cap.c | 2 ++ 1 file changed, 2 insertions(+)

---

diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c index 8213297ee9dc..a1ed5fdabc75 100644 --- a/drivers/media/platform/vivid/vivid-vid-cap.c +++ b/drivers/media/platform/vivid/vivid-vid-cap.c @@ -451,6 +451,8 @@ void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls) tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap)); break; } + vfree(dev->bitmap_cap); + dev->bitmap_cap = NULL; vivid_update_quality(dev); tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap); dev->crop_cap = dev->src_rect;