Re: [PATCH] Introduce the pkill_on_warn boot parameter
From: Kees Cook <hidden>
Date: 2021-09-30 18:36:42
Also in:
linux-hardening, lkml
On Thu, Sep 30, 2021 at 09:27:43PM +0300, Alexander Popov wrote:
On 30.09.2021 02:31, Andrew Morton wrote:quoted
On Wed, 29 Sep 2021 22:01:33 +0300 Alexander Popov [off-list ref] wrote:quoted
On 29.09.2021 21:58, Alexander Popov wrote: [...] If you are fine with this approach, I will prepare a patch adding the pkill_on_warn sysctl.Why do we need a boot parameter? Isn't a sysctl all we need for this feature?I would say we need both sysctl and boot parameter for pkill_on_warn. That would be consistent with panic_on_warn, ftrace_dump_on_oops and oops/panic_on_oops.
If you want to change it at runtime, just make a sysctl: it will
be available as a bootparam since v5.8. See commit 3db978d480e2
("kernel/sysctl: support setting sysctl parameters from kernel command
line")
--
Kees Cook