From: David Sterba <dsterba@suse.cz>
To: Filipe Manana <fdmanana@gmail.com>
Cc: syzbot <syzbot+6700bca07dff187809c4@syzkaller.appspotmail.com>,
Chris Mason <clm@fb.com>, David Sterba <dsterba@suse.com>,
Filipe David Borba Manana <fdmanana@suse.com>,
Josef Bacik <josef@toxicpanda.com>,
linux-btrfs <linux-btrfs@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
mingo@kernel.org, mingo@redhat.com, peterz@infradead.org,
rostedt@goodmis.org, syzkaller-bugs@googlegroups.com,
will@kernel.org
Subject: Re: KASAN: null-ptr-deref Write in start_transaction
Date: Fri, 8 Jan 2021 15:35:08 +0100 [thread overview]
Message-ID: <20210108143508.GZ6430@twin.jikos.cz> (raw)
In-Reply-To: <CAL3q7H63XwdxmHgTRZthh6xYtg1uyqAK3apbrwxobRQ660U+JA@mail.gmail.com>
On Fri, Jan 08, 2021 at 02:22:00PM +0000, Filipe Manana wrote:
> On Thu, Jan 7, 2021 at 1:13 PM syzbot
> <syzbot+6700bca07dff187809c4@syzkaller.appspotmail.com> wrote:
> >
> > syzbot suspects this issue was fixed by commit:
> >
> > commit f30bed83426c5cb9fce6cabb3f7cc5a9d5428fcc
> > Author: Filipe Manana <fdmanana@suse.com>
> > Date: Fri Nov 13 11:24:17 2020 +0000
> >
> > btrfs: remove unnecessary attempt to drop extent maps after adding inline extent
> >
> > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13ddc30b500000
> > start commit: 521b619a Merge tag 'linux-kselftest-kunit-fixes-5.10-rc3' ..
> > git tree: upstream
> > kernel config: https://syzkaller.appspot.com/x/.config?x=61033507391c77ff
> > dashboard link: https://syzkaller.appspot.com/bug?extid=6700bca07dff187809c4
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a07ab2500000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10fe69c6500000
> >
> > If the result looks correct, please mark the issue as fixed by replying with:
> >
> > #syz fix: btrfs: remove unnecessary attempt to drop extent maps after adding inline extent
>
> Nop, it can't be this change.
>
> What should fix it should be the following commit:
>
> commit ecfdc08b8cc65d737eebc26a1ee1875a097fd6a0
> Author: Goldwyn Rodrigues <rgoldwyn@suse.com>
> Date: Thu Sep 24 11:39:21 2020 -0500
>
> btrfs: remove dio iomap DSYNC workaround
#syz fix: btrfs: remove dio iomap DSYNC workaround
prev parent reply other threads:[~2021-01-08 14:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 18:55 KASAN: null-ptr-deref Write in start_transaction syzbot
2021-01-07 13:11 ` syzbot
2021-01-08 9:17 ` Dmitry Vyukov
2021-01-08 14:05 ` David Sterba
2021-01-08 14:22 ` Filipe Manana
2021-01-08 14:33 ` David Sterba
2021-01-08 14:35 ` David Sterba [this message]
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