On 2020-08-25 17:49, Jakub Kicinski wrote:
On Tue, 25 Aug 2020 14:13:23 +0200 Björn Töpel wrote:
From: Björn Töpel
The page recycle code, incorrectly, relied on that a page fragment
could not be freed inside xdp_do_redirect(). This assumption leads to
that page fragments that are used by the s
On Tue, 25 Aug 2020 14:13:23 +0200 Björn Töpel wrote:
> From: Björn Töpel
>
> The page recycle code, incorrectly, relied on that a page fragment
> could not be freed inside xdp_do_redirect(). This assumption leads to
> that page fragments that are used by the stack/XDP redirect can be
> reused an
From: Björn Töpel
The page recycle code, incorrectly, relied on that a page fragment
could not be freed inside xdp_do_redirect(). This assumption leads to
that page fragments that are used by the stack/XDP redirect can be
reused and overwritten.
To avoid this, store the page count prior invoking
