Re: Please backport: vfs: deny copy_file_range() for non regular files

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On Tue, Oct 10, 2017 at 08:06:07PM +0200, Greg KH wrote:
> On Sat, Oct 07, 2017 at 09:19:33PM -0400, Theodore Ts'o wrote:
> > Hi, please cherry pick the following upstream commit:
> > 
> >    11cbfb10775a: vfs: deny copy_file_range() for non regular files
> > 
> > to 3.18, 4.1, 4.4, and 4.9 LTS stable kernels.
> 
> It does not apply to the 3.18 or 4.4 stable kernels.  It worked for 4.9.
> Don't care about 4.1 :)
> 
> Do you have a working backport anywhere?

To follow up with this, copy_file_ranges() showed up in the 4.5 kernel
release, so how is this a problem for older kernels than that?

thanks,

greg k-h



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