linux-ext4 - Re: [syzbot] kernel BUG in __ext4_journal

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Message-ID: <CANp29Y4MJvu7RANUknMGthSMDJb2u_5_BOgfYce=SiMKK1aKtQ@mail.gmail.com>
Date:   Wed, 4 Oct 2023 11:57:37 +0200
From:   Aleksandr Nogikh <nogikh@...gle.com>
To:     syzbot <syzbot+bdab24d5bf96d57c50b0@...kaller.appspotmail.com>
Cc:     adilger.kernel@...ger.ca, joneslee@...gle.com,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-android-bugs@...glegroups.com,
        syzkaller-bugs@...glegroups.com, tudor.ambarus@...aro.org,
        tytso@....edu
Subject: Re: [syzbot] kernel BUG in __ext4_journal_stop

On Wed, Oct 4, 2023 at 10:49 AM syzbot
<syzbot+bdab24d5bf96d57c50b0@...kaller.appspotmail.com> wrote:
>
> This bug is marked as fixed by commit:
> ext4: fix race condition between buffer write and page_mkwrite

There's been such a series, but it apparently did not get through.
Let's unfix the bug, syzbot will either do a fix bisection and find
the actual fix commit or auto-invalidate the bug.

#syz unfix


>
> But I can't find it in the tested trees[1] for more than 90 days.
> Is it a correct commit? Please update it by replying:
>
> #syz fix: exact-commit-title
>
> Until then the bug is still considered open and new crashes with
> the same signature are ignored.
>
> Kernel: Linux
> Dashboard link: https://syzkaller.appspot.com/bug?extid=bdab24d5bf96d57c50b0
>
> ---
> [1] I expect the commit to be present in:
>
> 1. for-kernelci branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
>
> 2. master branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
>
> 3. master branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
>
> 4. main branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
>
> The full list of 9 trees can be found at
> https://syzkaller.appspot.com/upstream/repos