On Mon, Mar 01, 2021 at 04:41:09PM +0300, Dan Carpenter wrote:
> On Mon, Mar 01, 2021 at 08:13:54PM +0700, Candy Febriyanto wrote:
> > @@ -5082,7 +5084,7 @@ static int rtw_ioctl_wext_private(struct net_device
> > *dev, union iwreq_data *wrq_
> > case IW_PRIV_TYPE_BYTE:
> > /* Display args */
> > for (j = 0; j < n; j++) {
> > - sprintf(str, "%d ", extra[j]);
> > + scnprintf(str, sizeof(str), "%d ", extra[j]);
> > len = strlen(str);
>
> You could save a little code and combine the two statements:
>
> len = scnprintf(str, sizeof(str), "%d ",
> extra[j]);
Good catch, I'll send a V2.
>
> For bonus points, you could write a Coccinelle script to look for that
> pattern of calling strlen() on a freshly sprintfed string.
Sounds like a good idea, I don't know how to do it though so feel free.
>
> > output_len = strlen(output);
> > if ((output_len + len + 1) > 4096) {
>
> regards,
> dan carpenter
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