Currently, init_listener() tries to prevent adding a filter with
SECCOMP_FILTER_FLAG_NEW_LISTENER if one of the existing filters already
has a listener. However, this check happens without holding any lock that
would prevent another thread from concurrently installing a new filter
(potentially with
On Mon, 5 Oct 2020 03:44:01 +0200, Jann Horn wrote:
> Currently, init_listener() tries to prevent adding a filter with
> SECCOMP_FILTER_FLAG_NEW_LISTENER if one of the existing filters already
> has a listener. However, this check happens without holding any lock that
> would prevent another thread
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