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SubjectRe: Linux 4.9.55 break network setup because dhcp client gets an error
On 12/10/2017 19:57, Shuah Khan wrote:
> On Thu, Oct 12, 2017 at 11:52 AM, Eric Valette <> wrote:
>> Hi,
>> Just compiled a fresh 4.9.55, with same .config, same user space than 4.9.54
>> and discovered I had no network because ifup fails because dhcp cleint
>> fails. As everything is identical, 4.9.54 still works, I guess one patch in
>> net/core/... did break something.

> Please revert commit 345c66695569db83eed100723e4df72cb54df7de
> Author: Eric Dumazet <>
> Date: Mon Oct 2 12:20:51 2017 -0700
> socket, bpf: fix possible use after free
> This will fix the problem.

Thanks for the quick answer. Glad to see it is already known and almost
fixed. I'll rather wait for 56 (to get the correct patch dependency
merged) and remove 55 kernel image from /boot in the meantime.

Glas my headless NAS has a fixed address because it is more tricky to
get back in order and I switched it to 55 already.

Thanks for the support,

-- eric

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