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Date: Fri, 3 Jul 2026 12:08:25 +0200
From: Florian Westphal <fw@strlen.de>
To: Phil Sutter <phil@nwl.cc>
Cc: Ren Wei <enjou1224z@gmail.com>, netfilter-devel@vger.kernel.org,
	pablo@netfilter.org, davem@davemloft.net, edumazet@google.com,
	pabeni@redhat.com, horms@kernel.org, yuantan098@gmail.com,
	dstsmallbird@foxmail.com, chzhengyang2023@lzu.edu.cn
Subject: Re: [PATCH nf 1/1] netfilter: xt_time: reject pre-epoch calendar
 matching
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References: <cover.1782879547.git.chzhengyang2023@lzu.edu.cn>
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In-Reply-To: <akd6KZo1lwQ719d0@orbyte.nwl.cc>

Phil Sutter <phil@nwl.cc> wrote:
> On Fri, Jul 03, 2026 at 03:32:43PM +0800, Ren Wei wrote:
> > From: Zhengyang Chen <chzhengyang2023@lzu.edu.cn>
> > 
> > When XT_TIME_CONTIGUOUS handles a cross-day daytime range, packets in
> > the post-midnight part of the range are matched against the previous
> > calendar day by subtracting SECONDS_PER_DAY from stamp.

This is silly.  I'm not sure this is even a bug.
We're in 2026 not 1970.  I really don't see why this patch is required.