From: Jakub Kicinski <[email protected]>
Date: Fri, 26 Oct 2018 15:51:06 -0700
> gred_change_table_def() takes a pointer to TCA_GRED_DPS attribute,
> and expects it will be able to interpret its contents as
> struct tc_gred_sopt. Pass the correct gred attribute, instead of
> TCA_OPTIONS.
>
> This bug meant the table definition could never be changed after
> Qdisc was initialized (unless whatever TCA_OPTIONS contained both
> passed netlink validation and was a valid struct tc_gred_sopt...).
...
> Fixes: f62d6b936df5 ("[PKT_SCHED]: GRED: Use central VQ change procedure")
> Signed-off-by: Jakub Kicinski <[email protected]>
Quite an ancient bug :-)
Applied and queued up for -stable, thanks!
