netdev - Re: [GIT PULL] Crypto Update for 6.17

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Message-ID: <8bb5a196-7d55-4bdb-b890-709f918abad0@kernel.org>
Date: Thu, 2 Oct 2025 12:13:51 +0200
From: Jiri Slaby <jirislaby@...nel.org>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
 "David S. Miller" <davem@...emloft.net>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
 Vegard Nossum <vegard.nossum@...cle.com>, netdev@...r.kernel.org
Subject: Re: [GIT PULL] Crypto Update for 6.17

On 02. 10. 25, 12:05, Jiri Slaby wrote:
> On 02. 10. 25, 11:30, Herbert Xu wrote:
>> On Thu, Oct 02, 2025 at 10:10:41AM +0200, Jiri Slaby wrote:
>>> On 29. 07. 25, 13:07, Herbert Xu wrote:
>>>> Vegard Nossum (1):
>>>>         crypto: testmgr - desupport SHA-1 for FIPS 140
>>>
>>> Booting 6.17 with fips=1 crashes with this commit -- see below.
>>>
>>> The crash is different being on 6.17 (below) and on the commit --
>>> 9d50a25eeb05c45fef46120f4527885a14c84fb2.
>>>
>>> 6.17 minus that one makes it work again.
>>>
>>> Any ideas?
>>
>> The purpose of the above commit is to remove the SHA1 algorithm
>> if you boot with fips=1.  As net/ipv6/seg6_hmac.c depends on the
>> sha1 algorithm, it will obviously fail if SHA1 isn't there.
> 
> Ok, but I don't immediately see what is one supposed to do to boot 6.17 
> distro (openSUSE) kernel with fips=1 then?

Now I do, in the context you write, I see inet6_init()'s fail path is 
broken. The two backtraces show:
[    2.381371][    T1]  ip6_mr_cleanup+0x43/0x50
[    2.382321][    T1]  inet6_init+0x365/0x3d0

and

[    2.420857][    T1]  proto_unregister+0x93/0x100
[    2.420857][    T1]  inet6_init+0x3a2/0x3d0

I am looking what exactly, but this is rather for netdev@

thanks,
-- 
js
suse labs