linux-kernel - WARNING: filesystem loop4 was created with 512 inodes, the real maximum is 511, mounting anyway

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Message-ID: <000000000000bf566005b498f95f@google.com>
Date:   Fri, 20 Nov 2020 23:33:21 -0800
From:   syzbot <syzbot+1a219abc12077a390bc9@...kaller.appspotmail.com>
To:     linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: WARNING: filesystem loop4 was created with 512 inodes, the real
 maximum is 511, mounting anyway

Hello,

syzbot found the following issue on:

HEAD commit:    09162bc3 Linux 5.10-rc4
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=103f4fbe500000
kernel config:  https://syzkaller.appspot.com/x/.config?x=75292221eb79ace2
dashboard link: https://syzkaller.appspot.com/bug?extid=1a219abc12077a390bc9
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+1a219abc12077a390bc9@...kaller.appspotmail.com

BFS-fs: bfs_fill_super(): WARNING: filesystem loop4 was created with 512 inodes, the real maximum is 511, mounting anyway
BFS-fs: bfs_fill_super(): Last block not available on loop4: 1507328
BFS-fs: bfs_fill_super(): WARNING: filesystem loop4 was created with 512 inodes, the real maximum is 511, mounting anyway
BFS-fs: bfs_fill_super(): Last block not available on loop4: 1507328


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