linux-kernel - Re: [syzbot] [hfs?] WARNING in hfs_write

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Message-ID: <Y7bw7X1Y5KtmPF5s@casper.infradead.org>
Date:   Thu, 5 Jan 2023 15:46:53 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Viacheslav Dubeyko <slava@...eyko.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        syzbot <syzbot+7bb7cd3595533513a9e7@...kaller.appspotmail.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        christian.brauner@...ntu.com,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Jeff Layton <jlayton@...nel.org>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        syzkaller-bugs@...glegroups.com,
        ZhangPeng <zhangpeng362@...wei.com>,
        linux-m68k@...ts.linux-m68k.org
Subject: Re: [syzbot] [hfs?] WARNING in hfs_write_inode

On Wed, Jan 04, 2023 at 08:37:16PM -0800, Viacheslav Dubeyko wrote:
> Also, as far as I can see, available volume in report (mount_0.gz) somehow corrupted already:

Syzbot generates deliberately-corrupted (aka fuzzed) filesystem images.
So basically, you can't trust anything you read from the disc.