linux-kernel - Re: KASAN use-after-free Read in search_by_entry

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Message-ID: <20231024-unmotiviert-bezog-0580682e4772@brauner>
Date:   Tue, 24 Oct 2023 13:33:48 +0200
From:   Christian Brauner <brauner@...nel.org>
To:     Jan Kara <jack@...e.cz>
Cc:     Yikebaer Aizezi <yikebaer61@...il.com>,
        reiserfs-devel@...r.kernel.org,
        "dchinner@...hat.com" <dchinner@...hat.com>, jlayton@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: KASAN use-after-free Read in search_by_entry_key

On Tue, Oct 24, 2023 at 12:08:34PM +0200, Jan Kara wrote:
> Hello!
> 
> On Tue 24-10-23 10:30:46, Yikebaer Aizezi wrote:
> > When using Healer to fuzz the  Linux 6.6-rc7 Linux kernel,  the following crash
> > was triggered.
> 
> Thanks for report but I don't think there's a big interest in fixing
> reiserfs errors found by a fuzzer. Reiserfs is scheduled for removal from
> the kernel so it would be mostly a wasted effort.

Agreed, but also note that this is from a private syzkaller instance
with google drive links which makes me shy away from this tbh.

I don't think we should encourage private syzbot reports as that will
end up a nightmare for us all.