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authorHans Verkuil <hverkuil-cisco@xs4all.nl>2022-11-16 15:07:22 +0000
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-11-23 12:02:30 +0000
commit5eef2141776da02772c44ec406d6871a790761ee (patch)
tree9a8b22baad430ba0672e6e4b89426725b9100957 /drivers/staging/media/hantro/hantro_drv.c
parentde547896aac606a00435a219757a940ece142bf0 (diff)
media: v4l2-dv-timings.c: fix too strict blanking sanity checksfixes
Sanity checks were added to verify the v4l2_bt_timings blanking fields in order to avoid integer overflows when userspace passes weird values. But that assumed that userspace would correctly fill in the front porch, backporch and sync values, but sometimes all you know is the total blanking, which is then assigned to just one of these fields. And that can fail with these checks. So instead set a maximum for the total horizontal and vertical blanking and check that each field remains below that. That is still sufficient to avoid integer overflows, but it also allows for more flexibility in how userspace fills in these fields. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Fixes: 4b6d66a45ed3 ("media: v4l2-dv-timings: add sanity checks for blanking values") Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/staging/media/hantro/hantro_drv.c')
0 files changed, 0 insertions, 0 deletions

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