linux-kernel - Re: [PATCH] coredump: fix unfreezable coredumping task

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20161107142608.e4fa032b2e32b623663ff2e9@linux-foundation.org>
Date:   Mon, 7 Nov 2016 14:26:08 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Andrey Ryabinin <aryabinin@...tuozzo.com>
Cc:     Alexander Viro <viro@...iv.linux.org.uk>,
        Tejun Heo <tj@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Pavel Machek <pavel@....cz>, "Oleg Nesterov" <oleg@...hat.com>,
        <linux-pm@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>
Subject: Re: [PATCH] coredump: fix unfreezable coredumping task

On Fri, 30 Sep 2016 11:50:34 +0300 Andrey Ryabinin <aryabinin@...tuozzo.com> wrote:

> It could be not possible to freeze coredumping task when it waits
> for 'core_state->startup' completion, because threads are frozen
> in get_signal() before they got a chance to complete 'core_state->startup'.
> 
> Use freezer_do_not_count() to tell freezer to ignore coredumping
> task while it waits for core_state->startup completion.
> 
> Signed-off-by: Andrey Ryabinin <aryabinin@...tuozzo.com>
> Cc: stable@...r.kernel.org

The changelog provides no reason why this patch should be merged into
-stable.  Nor into anything else, really.

Please (as always) provide a full description of the bug's end-user
visible effects.