On Wed, 15 Aug 2018 10:17:50 +0200,
Hsin-Yu Chao wrote:
>
> When seccomp policy is applied to filter ioctl syscall with
> SNDRV_CTL_IOCTL_TLV_COMMAND, SNDRV_CTL_IOCTL_TLV_READ and
> SNDRV_CTL_IOCTL_TLV_WRITE in whiltelist, alsa-lib still breaks
> in at snd_ctl_hw_elem_tlv().
> Fix the problem by passing unsigned int to ioctl.
Could you explain exactly what breaks and how?
thanks,
Takashi
>
> Signed-off-by: Hsin-Yu Chao <hychao@xxxxxxxxxxxx>
> ---
> src/control/control_hw.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/control/control_hw.c b/src/control/control_hw.c
> index 68eca522..b54d65f2 100644
> --- a/src/control/control_hw.c
> +++ b/src/control/control_hw.c
> @@ -215,7 +215,7 @@ static int snd_ctl_hw_elem_tlv(snd_ctl_t *handle, int op_flag,
> unsigned int numid,
> unsigned int *tlv, unsigned int tlv_size)
> {
> - int inum;
> + unsigned int inum;
> snd_ctl_hw_t *hw = handle->private_data;
> struct snd_ctl_tlv *xtlv;
>
> --
> 2.18.0.865.gffc8e1a3cd6-goog
>
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