linux-kernel - [PATCH] seccomp.2: Clarify that bad system calls kill the thread

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Message-ID: <87k0mbp0yc.fsf_-_@disp2133>
Date:   Wed, 30 Jun 2021 15:11:23 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Michael Kerrisk <mtk.manpages@...il.com>
Cc:     linux-api@...r.kernel.org, Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Al Viro <viro@...iv.linux.org.uk>,
        Kees Cook <keescook@...omium.org>, linux-man@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] seccomp.2:  Clarify that bad system calls kill the thread


Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 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.
-- 
2.29.2