linux-kernel - Re: Bug report: ntfs_read

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Message-ID: <YrQcXg89eO0Y/pgZ@kroah.com>
Date:   Thu, 23 Jun 2022 09:55:10 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     xu xin <cgel.zte@...il.com>
Cc:     anton@...era.com, linux-ntfs-dev@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        xu.xin16@....com.cn, linux-fsdevel@...r.kernel.org
Subject: Re: Bug report: ntfs_read_block may crash system

On Thu, Jun 23, 2022 at 03:36:35AM +0000, xu xin wrote:
> >From Zeal Robot <zealci@....com.cn>
> 
> Hi! Zeal Robot found a potential risky bug about NTFS under the help of syzkaller.
> This will cause OS crash when CONFIG_NTFS_FS is set and panic_on_oops is on.

Do you have a proposed fix for this as you can easily reproduce this?

And it looks like you need root permisions for this, right?

thanks,

greg k-h