Re: [PATCH] keys, dns: Fix size check of V1 server-list header

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On Mon, Jan 22, 2024 at 08:32:20AM +0100, Petr Vorel wrote:
> From: Sedat Dilek <sedat.dilek@xxxxxxxxx>
> 
> On Wed, Jan 10, 2024 at 10:12 PM David Howells <dhowells@xxxxxxxxxx> wrote:
> >
> >
> > Fix the size check added to dns_resolver_preparse() for the V1 server-list
> > header so that it doesn't give EINVAL if the size supplied is the same as
> > the size of the header struct (which should be valid).
> >
> > This can be tested with:
> >
> >         echo -n -e '\0\0\01\xff\0\0' | keyctl padd dns_resolver desc @p
> >
> > which will give "add_key: Invalid argument" without this fix.
> >
> > Fixes: 1997b3cb4217 ("keys, dns: Fix missing size check of V1 server-list header")
> 
> [ CC stable@xxxxxxxxxxxxxxx ]
> 
> Your (follow-up) patch is now upstream.
> 
> https://git.kernel.org/linus/acc657692aed438e9931438f8c923b2b107aebf9
> 
> This misses CC: Stable Tag as suggested by Linus.
> 
> Looks like linux-6.1.y and linux-6.6.y needs it, too.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.6.11&id=da89365158f6f656b28bcdbcbbe9eaf97c63c474
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.72&id=079eefaecfd7bbb8fcc30eccb0dfdf50c91f1805

And 5.10.y and 5.15.y.  Now queued up, thanks.

greg k-h




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