Re: crypto regression in 4.1.18: Check that kernel supports aes-cbc-essiv:sha256 cipher

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On 03/01/2016 03:58 AM, Greg KH wrote:
> On Tue, Mar 01, 2016 at 01:32:05AM +0000, Eric Wheeler wrote:
>> Hello all,
>>
>> We updated from 4.1.17 to 4.1.18 (same .config) and now get the following 
>> error when trying to open a LUKS volume.  We've reverted to 4.1.17 and it 
>> still works, so except that I'm not sure which commit caused the problem, 
>> it is likely one of the recent commits:
>>
>> When we `cryptsetup luksOpen` the volume we get this:
>>
>>   Check that kernel supports aes-cbc-essiv:sha256 cipher (check syslog for more info).  
>>
>> Note that I do not see any dm-crypto commits so I don't think its a 
>> dm-crypto issue. 
>>
>> I'm happy to test, but can someone who knows the crypto stack suggest 
>> which of these patches I should focus on for testing? These are the 
>> commits in 4.1.18 that could be relevant:
> 
> There are some pending crypto backports to resolve this that hopefully
> will show up in the next release, whenever Sasha gets to it.

Also there is already released cryptsetup 1.7.1 that works even with this kernel.

Milan

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