From: David Sterba <dsterba@suse.cz>
To: syzbot <syzbot+8e86db7d430e87415248@syzkaller.appspotmail.com>
Cc: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com,
linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [btrfs?] INFO: trying to register non-static key in btrfs_stop_all_workers
Date: Tue, 30 Jul 2024 16:16:56 +0200 [thread overview]
Message-ID: <20240730141656.GD17473@twin.jikos.cz> (raw)
In-Reply-To: <000000000000de6b81061a5938d6@google.com>
On Fri, Jun 07, 2024 at 09:19:28PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: f06ce441457d Merge tag 'loongarch-fixes-6.10-1' of git://g..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=176b7026980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=998c63c06e77f5e7
> dashboard link: https://syzkaller.appspot.com/bug?extid=8e86db7d430e87415248
> compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> userspace arch: i386
>
> Unfortunately, I don't have any reproducer for this issue yet.
Most likely this was a side effect of bug fixed by commit f3a5367c679d
("btrfs: protect folio::private when attaching extent buffer folios").
There's only one syzbot report and the timeframe corresponds with
increased number of bogus errors caused by use-after-free of a page.
The fix is best guess.
#syz fix: btrfs: protect folio::private when attaching extent buffer folios
prev parent reply other threads:[~2024-07-30 14:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-08 4:19 [syzbot] [btrfs?] INFO: trying to register non-static key in btrfs_stop_all_workers syzbot
2024-07-30 14:16 ` David Sterba [this message]
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