All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kees Cook <keescook@chromium.org>
To: Petr Skocik <pskocik@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	Oleg Nesterov <oleg@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Marco Elver <elver@google.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills ***
Date: Tue, 22 Nov 2022 09:15:42 -0800	[thread overview]
Message-ID: <202211220913.AF86992@keescook> (raw)
In-Reply-To: <20221122161240.137570-1-pskocik@gmail.com>

On Tue, Nov 22, 2022 at 05:12:40PM +0100, Petr Skocik wrote:
> Hi. I've never sent a kernel patch before but this one seemed trivial,
> so I thought I'd give it a shot.
> 
> My issue: kill(-1,s) on Linux doesn't return -ESCHR when it has nothing
> to kill.

It looks like LTP already tests for this, and gets -ESRCH?
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/containers/pidns/pidns10.c

Does it still pass with your change?

-- 
Kees Cook

  parent reply	other threads:[~2022-11-22 17:15 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-22 16:12 [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills *** Petr Skocik
2022-11-22 16:12 ` [PATCH 1/1] Fix kill(-1,s) returning 0 on 0 kills Petr Skocik
2022-11-23 10:30   ` Oleg Nesterov
2022-11-23 11:20     ` Oleg Nesterov
2022-11-23 11:27     ` Petr Skocik
2022-11-23 11:56       ` Oleg Nesterov
2022-11-22 17:15 ` Kees Cook [this message]
2022-11-22 23:01   ` [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills *** Petr Skocik
2023-08-09 12:27   ` Petr Skocik
2023-08-10 16:16     ` Eric W. Biederman
2023-08-10 21:30       ` Petr Skocik
2023-08-11 21:25         ` Eric W. Biederman
2023-08-11 22:16           ` [PATCH] signal: Fix the error return of kill -1 Eric W. Biederman
2023-08-14 14:06             ` Oleg Nesterov
2023-08-14 15:43               ` Oleg Nesterov
2023-08-15 14:47                 ` David Laight
2023-08-15 15:11                   ` Oleg Nesterov
2023-08-16 20:32                     ` Eric W. Biederman
2023-08-16 21:06                       ` Oleg Nesterov
2023-08-17  2:33                         ` Eric W. Biederman
2023-08-17  4:37                           ` Eric W. Biederman
2023-08-17 15:47                             ` [PATCH] __kill_pgrp_info: simplify the calculation of return value Oleg Nesterov
2023-08-11 23:37           ` [PATCH 0/1] *** Fix kill(-1,s) returning 0 on 0 kills *** Petr Skocik

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=202211220913.AF86992@keescook \
    --to=keescook@chromium.org \
    --cc=ebiederm@xmission.com \
    --cc=elver@google.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=oleg@redhat.com \
    --cc=peterz@infradead.org \
    --cc=pskocik@gmail.com \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.