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SubjectRe: [syzbot] WARNING: kobject bug in erofs_unregister_sysfs
On Sun, 20 Mar 2022 at 05:19, Dongliang Mu <mudongliangabcd@gmail.com> wrote:
>
> On Sat, Mar 19, 2022 at 10:21 AM Muchun Song <songmuchun@bytedance.com> wrote:
> >
> > On Sat, Mar 19, 2022 at 6:33 AM syzbot
> > <syzbot+f05ba4652c0471416eaf@syzkaller.appspotmail.com> wrote:
> > >
> > > syzbot has bisected this issue to:
> > >
> > > commit 2768c206f2c3e95c0e5cf2e7f846103fda7cd429
> > > Author: Muchun Song <songmuchun@bytedance.com>
> > > Date: Thu Mar 3 01:15:36 2022 +0000
> > >
> > > mm: list_lru: allocate list_lru_one only when needed
> > >
> > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1495694d700000
> > > start commit: 91265a6da44d Add linux-next specific files for 20220303
> > > git tree: linux-next
> > > final oops: https://syzkaller.appspot.com/x/report.txt?x=1695694d700000
> > > console output: https://syzkaller.appspot.com/x/log.txt?x=1295694d700000
> > > kernel config: https://syzkaller.appspot.com/x/.config?x=617f79440a35673a
> > > dashboard link: https://syzkaller.appspot.com/bug?extid=f05ba4652c0471416eaf
> > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=137f17d9700000
> > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=114ebabd700000
> > >
> > > Reported-by: syzbot+f05ba4652c0471416eaf@syzkaller.appspotmail.com
> > > Fixes: 2768c206f2c3 ("mm: list_lru: allocate list_lru_one only when needed")
> >
> > Does this patch [1] fix the issue? If yes, I am confused why the Fixes tag
> > should be the commit 2768c206f2c3? What am I missing here?
>
> Sometimes syzkaller bisection may make mistakes. Please ignore it.
>
> >
> > [1] https://lore.kernel.org/r/20220315132814.12332-1-dzm91@hust.edu.cn
>

Let's tell syzbot so that it reports new bugs in future:

#syz fix: fs: erofs: add sanity check for kobject in erofs_unregister_sysfs

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