linux-kernel - Re: [RFC PATCH] mm/slab: Add size validation in kmalloc_array

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Message-ID: <CAPrAcgOsYofEUxOB81zaJb0vo994N4diDzYYTaZ-hGEtke+dyQ@mail.gmail.com>
Date: Tue, 23 Sep 2025 09:58:36 +0530
From: viswanath <viswanathiyyappan@...il.com>
To: Matthew Wilcox <willy@...radead.org>
Cc: vbabka@...e.cz, akpm@...ux-foundation.org, cl@...two.org, 
	rientjes@...gle.com, roman.gushchin@...ux.dev, harry.yoo@...cle.com, 
	linux-mm@...ck.org, linux-kernel@...r.kernel.org, skhan@...uxfoundation.org, 
	david.hunter.linux@...il.com, linux-kernel-mentees@...ts.linux.dev, 
	syzbot+94d20db923b9f51be0df@...kaller.appspotmail.com
Subject: Re: [RFC PATCH] mm/slab: Add size validation in kmalloc_array_* functions

On Tue, 23 Sept 2025 at 03:06, Matthew Wilcox <willy@...radead.org> wrote:
> Is it really a good idea to support 2^28 vclocks?  Surely there's a
> limit that makes sense to the PTP driver.

I think I will add a new macro for the limit and validate against that

Thanks
Viswanath