linux-kernel - Re: [PATCH v2] ext4: fix kernel BUG in 'ext4_write_inline_data

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Message-ID: <CABymUCMC=8PwrqetiOBVK98iwKrycAf_eYZdfqVOPya6jZTPvQ@mail.gmail.com>
Date:   Wed, 7 Dec 2022 16:11:01 +0800
From:   Jun Nie <jun.nie@...aro.org>
To:     "yebin (H)" <yebin10@...wei.com>
Cc:     Ye Bin <yebin@...weicloud.com>, tytso@....edu,
        adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
        linux-kernel@...r.kernel.org, jack@...e.cz,
        syzbot+4faa160fa96bfba639f8@...kaller.appspotmail.com
Subject: Re: [PATCH v2] ext4: fix kernel BUG in 'ext4_write_inline_data_end()'

yebin (H) <yebin10@...wei.com> 于2022年12月7日周三 15:54写道：
>
>
>
> On 2022/12/7 14:44, Jun Nie wrote:
> > Hi Bin,
> >
> > Thanks for the patch! The bug is reproduced with this patch. I can
> > help trigger another
> > test when you have new patch.
> > https://syzkaller.appspot.com/text?tag=CrashLog&x=16760797880000
>
> The cause of this issue is different from that of the previous issue.
> I analyze that the issue
> "https://syzkaller.appspot.com/text?tag=CrashLog&x=16760797880000 "
> is caused by the concurrency of  inline data conversion and buffer
> write. To be honest, I haven't
> thought of any good solution.
>
Thanks for explanation. So the patch to fix the previous bug is still
in upstream plan, right?
> >
> > Regards,
> > Jun
> > .
>