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Date:   Thu, 14 May 2020 23:10:37 +0200
From:   Daniel Borkmann <>
To:     Christoph Hellwig <>
Subject: Re: [PATCH bpf 0/3] Restrict bpf_probe_read{,str}() and
 bpf_trace_printk()'s %s

On 5/14/20 9:58 PM, Christoph Hellwig wrote:
> On Thu, May 14, 2020 at 09:54:06PM +0200, Daniel Borkmann wrote:
>> On 5/14/20 6:58 PM, Christoph Hellwig wrote:
>>> On Thu, May 14, 2020 at 06:16:04PM +0200, Daniel Borkmann wrote:
>>>> Small set of fixes in order to restrict BPF helpers for tracing which are
>>>> broken on archs with overlapping address ranges as per discussion in [0].
>>>> I've targetted this for -bpf tree so they can be routed as fixes. Thanks!
>>> Does that mean you are targeting them for 5.7?
>> Yes, it would make most sense to me based on the discussion we had in the
>> other thread. If there is concern wrt latency we could route these to DaveM's
>> net tree in a timely manner (e.g. still tonight or so).
> I don't think we should rush this too much.  I just want to make sure
> it either goes into 5.7 or that we have a coordinated tree that I can
> base the maccess series on.

Yep, makes sense, we'll target 5.7 for it.


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