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Re: [PATCH 4/5] ns16550: harden positional parsing
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Tue, 7 Apr 2026 11:02:19 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Kamil Frankowicz <kamil.frankowicz@xxxxxxx>
- Delivery-date: Tue, 07 Apr 2026 10:02:29 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 24/03/2026 4:38 pm, Jan Beulich wrote:
> Advancing past a character without knowing whether that's the NUL char is
> at risk of reading beyond the buffer.
>
> Fixes: 25de1f692059 ("Allow arch-specific defaults to be specified for
> ns16550")
> Reported-by: Kamil Frankowicz <kamil.frankowicz@xxxxxxx>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
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