Re: [PATCH] seccomp.2: Clarify that bad system calls kill the thread

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On Wed, Jun 30, 2021 at 03:11:23PM -0500, Eric W. Biederman wrote:
> 
> Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
> ---
>  man2/seccomp.2 | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/man2/seccomp.2 b/man2/seccomp.2
> index a3421871f0f4..bde54c3e3e99 100644
> --- a/man2/seccomp.2
> +++ b/man2/seccomp.2
> @@ -69,9 +69,10 @@ The only system calls that the calling thread is permitted to make are
>  .BR exit_group (2)),
>  and
>  .BR sigreturn (2).
> -Other system calls result in the delivery of a
> +Other system calls result in the termination of the calling thread,
> +or termination of the entire process with the
>  .BR SIGKILL
> -signal.
> +signal when there is only one thread.
>  Strict secure computing mode is useful for number-crunching
>  applications that may need to execute untrusted byte code, perhaps
>  obtained by reading from a pipe or socket.

Thanks!

Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>

-- 
Kees Cook



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