linux-hardening - Re: [PATCH] ACPI / sysfs: Replace deprecated and unsafe functions with sysfs

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Message-ID: <jbcmfguk7sfgpf4b5jsdjvuz7nzs34yhre3dokehrzm42dj4s7@fbpzrahozjay>
Date: Tue, 24 Jun 2025 19:26:28 +0530
From: Brahmajit Das <listout@...tout.xyz>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-acpi@...r.kernel.org, lenb@...nel.org, lv.zheng@...el.com, kees@...nel.org, 
	rui.zhang@...el.com, len.brown@...el.com
Subject: Re: [PATCH] ACPI / sysfs: Replace deprecated and unsafe functions
 with sysfs_emit

On 24.06.2025 15:46, Rafael J. Wysocki wrote:
> On Tue, Jun 24, 2025 at 3:38 PM Brahmajit Das <listout@...tout.xyz> wrote:
> >
> > acpi/sysfs.c has many instances of unsafe or deprecated functions such
> > as sprintf, strcpy. This patch relaces them with sysfs_emit to safer
> 
> "replaces"
> 
> > alternavtive and better following of kernel API.
> 
> "alternative"
> 
> 1. Have you tested all of the affected interfaces and verified that
> they still work as expected after the changes?
> 2. While the replaced functions are unsafe in principle, is the usage
> of them in any places affected by this patch actually unsafe?
> 

I meant to send this as RFC. Sorry.
But I guess the questions still holds.

-- 
Regards,
listout