On Wed, Mar 18, 2020 at 06:14:57PM -0400, Waiman Long wrote:
> + * It is possible, though unlikely, that the key
> + * changes in between the up_read->down_read period.
> + * If the key becomes longer, we will have to
> + * allocate a larger buffer and redo the key read
> + * again.
> + */
> + if (!tmpbuf || unlikely(ret > tmpbuflen)) {
Shouldn't you check that tmpbuflen stays below buflen (why else
you had made copy of buflen otherwise)?
/Jarkko
