WARNING: filesystem loop3 was created with 512 inodes, the real maximum is 511, mounting anyway

WARNING: filesystem loop3 was created with 512 inodes, the real maximum is 511, mounting anyway

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    98477740 Merge branch 'rcu/urgent' of git://git.kernel.org..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15964ec3900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6f192552d75898a1
dashboard link: https://syzkaller.appspot.com/bug?extid=293714df4fe354fae488
compiler:       gcc (GCC) 10.1.0-syz 20200507

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+293714df4fe354fae488@syzkaller.appspotmail.com

BFS-fs: bfs_fill_super(): WARNING: filesystem loop3 was created with 512 inodes, the real maximum is 511, mounting anyway
BFS-fs: bfs_fill_super(): Inode 0x00000002 corrupted on loop3


---
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Re: WARNING: filesystem loop3 was created with 512 inodes, the real maximum is 511, mounting anyway

[Dmitry Vyukov]

#syz fix: bfs: don't use WARNING: string when it's just info.

On Thu, Sep 24, 2020 at 11:40 AM syzbot
<syzbot+293714df4fe354fae488@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    98477740 Merge branch 'rcu/urgent' of git://git.kernel.org..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=15964ec3900000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=6f192552d75898a1
> dashboard link: https://syzkaller.appspot.com/bug?extid=293714df4fe354fae488
> compiler:       gcc (GCC) 10.1.0-syz 20200507
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+293714df4fe354fae488@syzkaller.appspotmail.com
>
> BFS-fs: bfs_fill_super(): WARNING: filesystem loop3 was created with 512 inodes, the real maximum is 511, mounting anyway
> BFS-fs: bfs_fill_super(): Inode 0x00000002 corrupted on loop3
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>
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