If a menu has more than 64 items, then don't check menu_skip_mask for items 65 and up. Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> Reported-by: syzbot+42d8c7c3d3e594b34346@xxxxxxxxxxxxxxxxxxxxxxxxx --- drivers/media/v4l2-core/v4l2-ctrls.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index f7b310240af2..016cf6204cbb 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -2181,7 +2181,8 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx, case V4L2_CTRL_TYPE_INTEGER_MENU: if (ptr.p_s32[idx] < ctrl->minimum || ptr.p_s32[idx] > ctrl->maximum) return -ERANGE; - if (ctrl->menu_skip_mask & (1ULL << ptr.p_s32[idx])) + if (ptr.p_s32[idx] < BITS_PER_LONG_LONG && + (ctrl->menu_skip_mask & BIT_ULL(ptr.p_s32[idx]))) return -EINVAL; if (ctrl->type == V4L2_CTRL_TYPE_MENU && ctrl->qmenu[ptr.p_s32[idx]][0] == '\0') -- 2.29.2
