linux-kernel - Re: [PATCH 5.10 39/41] bpf, x86: Validate computation of branch displacements for x86-32

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Message-ID: <400e9fca-c207-effb-05bf-844bc0e79021@iogearbox.net>
Date:   Fri, 9 Apr 2021 22:13:57 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Piotr Krysiuk <piotras@...il.com>, andrii@...nel.org,
        ast@...nel.org
Subject: Re: [PATCH 5.10 39/41] bpf, x86: Validate computation of branch
 displacements for x86-32

On 4/9/21 9:51 PM, Sudip Mukherjee wrote:
> On Fri, Apr 09, 2021 at 11:54:01AM +0200, Greg Kroah-Hartman wrote:
>> From: Piotr Krysiuk <piotras@...il.com>
>>
>> commit 26f55a59dc65ff77cd1c4b37991e26497fc68049 upstream.
> 
> I am not finding this in Linus's tree and even not seeing this change in
> master branch also. Am I missing something?

Both are in -net tree at this point, thus commit sha won't change anymore. David or
Jakub will likely send their -net PR to Linus today or tomorrow for landing in
mainline. For stable things had to move a bit quicker given the announcement in [0]
yesterday. Timing was a bit unfortunate here as I would have preferred for things to
land in stable the regular way first (aka merge to mainline, cherry-picking to stable,
minor stable release, then announcement).

Thanks,
Daniel

   [0] https://www.openwall.com/lists/oss-security/2021/04/08/1