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	Mon, 19 Aug 2024 13:22:03 +0000
Date: Mon, 19 Aug 2024 14:22:02 +0100
From: Matthew Wilcox <willy@infradead.org>
To: Hui Guo <guohui.study@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Alexander Potapenko <glider@google.com>,
	Marco Elver <elver@google.com>, linux-kernel@vger.kernel.org,
	Mark Rutland <mark.rutland@arm.com>, Ingo Molnar <mingo@kernel.org>,
	"Peter Zijlstra (Intel)" <peterz@infradead.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Uros Bizjak <ubizjak@gmail.com>,
	Carlos Llamas <cmllamas@google.com>, Jens Axboe <axboe@kernel.dk>,
	Pankaj Raghav <p.raghav@samsung.com>,
	Ryusuke Konishi <konishi.ryusuke@gmail.com>,
	Al Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
	linux-fsdevel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: KASAN: stack-out-of-bounds Write in end_buffer_read_sync
Message-ID: <ZsNG-teuPe8Tch25@casper.infradead.org>
References: <CAHOo4gJyho_xXKRJB52qTJuCrrq9L-RL59XYyo_oS5+vN7Osiw@mail.gmail.com>
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In-Reply-To: <CAHOo4gJyho_xXKRJB52qTJuCrrq9L-RL59XYyo_oS5+vN7Osiw@mail.gmail.com>

On Mon, Aug 19, 2024 at 08:50:48PM +0800, Hui Guo wrote:
> Hi Kernel Maintainers,
> Our tool found the following kernel bug "KASAN: stack-out-of-bounds
> Write in end_buffer_read_sync" on:
> HEAD Commit: 6b0f8db921abf0520081d779876d3a41069dab95 Merge tag
> 'execve-v6.11-rc4' of
> git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
> kernel config: https://github.com/androidAppGuard/KernelBugs/blob/main/6b0f8db921abf0520081d779876d3a41069dab95/.config
> repro log: https://github.com/androidAppGuard/KernelBugs/blob/main/6b0f8db921abf0520081d779876d3a41069dab95/d41d191102504ccfea2e8408a29f03973e4ccc81/repro.log
> syz repro: https://github.com/androidAppGuard/KernelBugs/blob/main/6b0f8db921abf0520081d779876d3a41069dab95/d41d191102504ccfea2e8408a29f03973e4ccc81/repro.prog
> 
> Please let me know if there is anything I can help.

You could bisect it to the commit that introduced the problem