linux-kernel - Re: [PATCH] kernel: add panic_on

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 for Android: free password hash cracker in your pocket

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

Date:   Wed, 6 May 2020 22:50:19 -0400
From:   Qian Cai <cai@....pw>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-doc@...r.kernel.org,
        kexec@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
        dyoung@...hat.com, Baoquan He <bhe@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Rafael Aquini <aquini@...hat.com>
Subject: Re: [PATCH] kernel: add panic_on_taint



> On May 6, 2020, at 6:28 PM, Rafael Aquini <aquini@...hat.com> wrote:
> 
> Analogously to the introduction of panic_on_warn, this patch
> introduces a kernel option named panic_on_taint in order to
> provide a simple and generic way to stop execution and catch
> a coredump when the kernel gets tainted by any given taint flag.
> 
> This is useful for debugging sessions as it avoids rebuilding
> the kernel to explicitly add calls to panic() or BUG() into
> code sites that introduce the taint flags of interest.
> Another, perhaps less frequent, use for this option would be
> as a mean for assuring a security policy (in paranoid mode)
> case where no single taint is allowed for the running system.

Andrew, you can drop the patch below from -mm now because that one is now obsolete,

mm-slub-add-panic_on_error-to-the-debug-facilities.patch