Re: [PATCH 1/2] seccomp: don't leak memory when filter install races

From: Kees Cook
Date: Tue Sep 08 2020 - 14:56:08 EST


On Tue, 1 Sep 2020 19:40:16 -0600, Tycho Andersen wrote:
> In seccomp_set_mode_filter() with TSYNC | NEW_LISTENER, we first initialize
> the listener fd, then check to see if we can actually use it later in
> seccomp_may_assign_mode(), which can fail if anyone else in our thread
> group has installed a filter and caused some divergence. If we can't, we
> partially clean up the newly allocated file: we put the fd, put the file,
> but don't actually clean up the *memory* that was allocated at
> filter->notif. Let's clean that up too.
>
> [...]

Applied, thanks!

[1/2] seccomp: don't leak memory when filter install races
https://git.kernel.org/kees/c/a566a9012acd
[2/2] mailmap, MAINTAINERS: move to tycho.pizza
https://git.kernel.org/kees/c/19d1d49f2a8c

Best regards,
--
Kees Cook