Re: [PATCH 3/9] VFS: Introduce a mount context

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Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:

> On Wed, May 03, 2017 at 11:26:38AM -0700, Joe Perches wrote:
> > On Wed, 2017-05-03 at 14:13 -0400, Jeff Layton wrote:
> > > On Wed, 2017-05-03 at 17:04 +0100, David Howells wrote:
> > > > +		oo = kmalloc((opts->num_mnt_opts + 1) * sizeof(char *),
> > > > +			     GFP_KERNEL);
> 
> If we're picking nits, then this should be kcalloc in case somebody
> passed in 2^31 in num_mnt_opts.

A few lines previously there is:

	if (opts->num_mnt_opts > 3) {
		mc->error = "SELinux: Too many options";
		return -EINVAL;
	}

David



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