From: Tycho Andersen <tycho@tycho.ws>
To: Kees Cook <keescook@chromium.org>, Oleg Nesterov <oleg@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: siginfo pid not populated from ptrace?
Date: Mon, 12 Nov 2018 10:11:44 -0700 [thread overview]
Message-ID: <20181112171144.GI3645@cisco> (raw)
Hi Oleg,
I've been running some tests on my seccomp series, and in one of the
tests on v4.20-rc2, I noticed,
[ RUN ] global.syscall_restart
seccomp_bpf.c:2784:global.syscall_restart:Expected getpid() (1492) == info._sifields._kill.si_pid (0)
global.syscall_restart: Test failed at step #22
which seems unrelated to my series (the kernel was stock v4.20 with my
patches on top).
I've been running a lot of tests, and only seen this once, so it seems
like a fairly rare race. I tried to look through the code but didn't
see anything obvious. Thoughts?
Tycho
next reply other threads:[~2018-11-12 17:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-12 17:11 Tycho Andersen [this message]
2018-11-12 18:30 ` siginfo pid not populated from ptrace? Eric W. Biederman
2018-11-12 18:55 ` Tycho Andersen
2018-11-12 19:22 ` Eric W. Biederman
2018-11-12 19:24 ` Tycho Andersen
2018-11-27 23:21 ` Tycho Andersen
2018-11-28 0:38 ` Kees Cook
2018-11-28 1:17 ` Kees Cook
2018-11-28 4:44 ` Eric W. Biederman
2018-11-29 21:17 ` Kees Cook
2018-11-29 23:22 ` Tycho Andersen
2018-12-01 15:04 ` Eric W. Biederman
2018-12-06 1:00 ` Kees Cook
2018-12-06 14:40 ` Eric W. Biederman
2018-12-06 18:48 ` Linus Torvalds
2018-12-06 19:20 ` Tycho Andersen
2018-12-06 21:11 ` Eric W. Biederman
2018-12-06 21:34 ` Kees Cook
2018-12-06 22:43 ` Eric W. Biederman
2018-12-06 22:55 ` Kees Cook
2018-12-10 15:37 ` Oleg Nesterov
2018-12-10 15:44 ` Tycho Andersen
2018-12-10 17:36 ` Eric W. Biederman
2018-12-10 14:57 ` Oleg Nesterov
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