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From: Christoph Hellwig <hch@lst.de>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Christoph Hellwig <hch@lst.de>,
	dsterba@suse.cz,
	syzbot <syzbot+d2dd123304b4ae59f1bd@syzkaller.appspotmail.com>,
	akpm@linux-foundation.org, clm@fb.com, dsterba@suse.com,
	josef@toxicpanda.com, linux-btrfs@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, syzkaller-bugs@googlegroups.com,
	willy@infradead.org
Subject: Re: [syzbot] KASAN: use-after-free Read in copy_page_from_iter_atomic (2)
Date: Thu, 16 Jun 2022 08:35:10 +0200	[thread overview]
Message-ID: <20220616063510.GA5608@lst.de> (raw)
In-Reply-To: <00bbda63-dc00-05c0-4244-343352591d98@gmx.com>

On Thu, Jun 16, 2022 at 05:27:04AM +0800, Qu Wenruo wrote:
>> And how do I find out the logic address of the tree root?
>
> For tree root, "btrfs ins dump-super <dev> | grep '^root\s'.
>
> For other tree blocks, "btrfs ins dump-tree <dev>" then with other other
> keywords to grab.

Thanks a lot !

  reply	other threads:[~2022-06-16  6:35 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-07 13:11 [syzbot] KASAN: use-after-free Read in copy_page_from_iter_atomic (2) syzbot
2022-06-10  1:24 ` syzbot
2022-06-10  7:10 ` syzbot
2022-06-13 19:39   ` David Sterba
2022-06-14  7:17     ` Christoph Hellwig
2022-06-14  8:50       ` Qu Wenruo
2022-06-15 13:21         ` Christoph Hellwig
2022-06-15 21:27           ` Qu Wenruo
2022-06-16  6:35             ` Christoph Hellwig [this message]
2022-06-16 14:57       ` David Sterba

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