From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
outbounddisclosures@openai.com, Kyle Zeng <kylebot@openai.com>
Subject: Re: [PATCH 6.12.y] reiserfs: reject direct items that span block buffers
Date: Fri, 12 Jun 2026 10:41:18 -0400 [thread overview]
Message-ID: <20260612-stable-reply-reiserfs-direct-0005@kernel.org> (raw)
In-Reply-To: <20260611223944.74106-1-kylebot@openai.com>
On Thu, Jun 11, 2026 at 03:39:44PM -0700, Kyle Zeng wrote:
> Track the remaining mapped-buffer bytes in the read and writeback paths,
> and reject direct-to-indirect conversion when a direct item or accumulated
> tail would cross the target block.
Thanks for the fix. I can't queue this for stable: reiserfs was removed from
mainline in 6.13, so there's no upstream commit (and can't be), and there's no
maintainer Reviewed-by/Acked-by (the subsystem is obsolete). I won't take a
stable-only change for a removed subsystem without upstream presence or a
maintainer ack.
If you can get subsystem review/ack, I'll reconsider. Note exploitation here
also requires mounting a crafted image.
--
Thanks,
Sasha
prev parent reply other threads:[~2026-06-12 14:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-11 22:39 [PATCH 6.12.y] reiserfs: reject direct items that span block buffers Kyle Zeng
2026-06-12 14:41 ` Sasha Levin [this message]
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