netdev - Re: [PATCH bpf] bpf: use array_index_nospec in find_prog

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Message-ID: <20180504023200.hfl5mdrp76sklayt@ast-mbp>
Date:   Thu, 3 May 2018 19:32:01 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Daniel Borkmann <daniel@...earbox.net>
Cc:     netdev@...r.kernel.org, Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH bpf] bpf: use array_index_nospec in find_prog_type

On Fri, May 04, 2018 at 02:13:57AM +0200, Daniel Borkmann wrote:
> Commit 9ef09e35e521 ("bpf: fix possible spectre-v1 in find_and_alloc_map()")
> converted find_and_alloc_map() over to use array_index_nospec() to sanitize
> map type that user space passes on map creation, and this patch does an
> analogous conversion for progs in find_prog_type() as it's also passed from
> user space when loading progs as attr->prog_type.
> 
> Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
> Cc: Mark Rutland <mark.rutland@....com>

Applied to bpf tree, thanks Daniel.