Re: [nft PATCH] netlink_delinearize: Sanitize concat data element decoding

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Subject: Re: [nft PATCH] netlink_delinearize: Sanitize concat data element decoding
From: Phil Sutter <phil@xxxxxx>
Date: Tue, 21 Feb 2023 19:48:53 +0100
Cc: Florian Westphal <fw@xxxxxxxxx>, netfilter-devel@xxxxxxxxxxxxxxx
In-reply-to: <20230221182133.11746-1-phil@nwl.cc>
Mail-followup-to: Phil Sutter <phil@xxxxxx>, Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>, Florian Westphal <fw@xxxxxxxxx>, netfilter-devel@xxxxxxxxxxxxxxx

On Tue, Feb 21, 2023 at 07:21:33PM +0100, Phil Sutter wrote:
> The call to netlink_get_register() might return NULL, catch this before
> dereferencing the pointer.
> 
> Fixes: db59a5c1204c9 ("netlink_delinearize: fix decoding of concat data element")
> Signed-off-by: Phil Sutter <phil@xxxxxx>

Patch applied.

References:
- [nft PATCH] netlink_delinearize: Sanitize concat data element decoding
  - From: Phil Sutter

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