[LTP] [PATCH v2 2/2] Add setsockopt08, CVE-2021-22555

Richard Palethorpe
2021-08-03T09:35:54Z

Hi,

Martin Doucha <mdoucha@suse.cz> writes:

> Hi,
> since this vulnerability is in the compat syscall wrappers, you should
> also copy the arch bits check from setsockopt03 setup().

+1

Will roll another patch after a delay.

>
> On 03. 08. 21 10:38, Richard Palethorpe via ltp wrote:
>> This is a copy and paste of Nicolai's reproducer. The main difference
>> is that I moved some code around. Of course I also used LTP library
>> features, but essentially it works the same.
>>
>> There are some hard coded values which I do not like. I guess these
>> could be calculated or varied somehow. However I struggle to understand
>> what the kernel is doing. This perhaps needs more investigation. We
>> could try generalising this test and setsockopt03

--
Thank you,
Richard.