From: Matthew Wilcox <willy@infradead.org>
To: I Viswanath <viswanathiyyappan@gmail.com>
Cc: vbabka@suse.cz, akpm@linux-foundation.org, cl@gentwo.org,
rientjes@google.com, roman.gushchin@linux.dev,
harry.yoo@oracle.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, skhan@linuxfoundation.org,
david.hunter.linux@gmail.com,
linux-kernel-mentees@lists.linux.dev,
syzbot+94d20db923b9f51be0df@syzkaller.appspotmail.com
Subject: Re: [RFC PATCH] mm/slab: Add size validation in kmalloc_array_* functions
Date: Mon, 22 Sep 2025 22:36:16 +0100 [thread overview]
Message-ID: <aNHBUJxAs-vomIF3@casper.infradead.org> (raw)
In-Reply-To: <20250922170357.148588-1-viswanathiyyappan@gmail.com>
On Mon, Sep 22, 2025 at 10:33:57PM +0530, I Viswanath wrote:
> This occurs when the size argument fits into a u32 but is too large
> to allocate, i.e., when it's between KMALLOC_MAX_SIZE + 1
> and UINT_MAX (both limits included)
Is it really a good idea to support 2^28 vclocks? Surely there's a
limit that makes sense to the PTP driver.
Beyond that, this should probably be using kvmalloc_array rather than
kcalloc_array().
next prev parent reply other threads:[~2025-09-22 21:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-22 17:03 I Viswanath
2025-09-22 17:59 ` Harry Yoo
2025-09-23 5:11 ` viswanath
2025-09-23 6:14 ` Harry Yoo
2025-09-22 21:36 ` Matthew Wilcox [this message]
2025-09-23 4:28 ` viswanath
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