linux-kernel - Re: [PATCH v10 clocksource 1/7] clocksource: Provide module parameters to inject delays in watchdog

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]

Date:   Mon, 26 Apr 2021 10:56:27 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     tglx@...utronix.de, linux-kernel@...r.kernel.org,
        john.stultz@...aro.org, sboyd@...nel.org, corbet@....net,
        Mark.Rutland@....com, maz@...nel.org, kernel-team@...com,
        neeraju@...eaurora.org, feng.tang@...el.com,
        zhengjun.xing@...el.com, Chris Mason <clm@...com>
Subject: Re: [PATCH v10 clocksource 1/7] clocksource: Provide module
 parameters to inject delays in watchdog

> ------------------------------------------------------------------------
> 
> - module parameters
> 
>   If the scope of the fault injection capability is limited to a
>   single kernel module, it is better to provide module parameters to
>   configure the fault attributes.
> 
> ------------------------------------------------------------------------
> 
> And in this case, the fault injection capability is in fact limited to
> kernel/clocksource.c.


I disagree with this recommendation because it prevents fuzzer coverage.

Much better to have an uniform interface that can be automatically
explored.

-Andi