linux-kernel - Re: 6.17 crashes in ipv6 code when booted fips=1 [was: [GIT PULL] Crypto Update for 6.17]

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Message-ID: <20251006192622.GA1546808@google.com>
Date: Mon, 6 Oct 2025 19:26:22 +0000
From: Eric Biggers <ebiggers@...nel.org>
To: Vegard Nossum <vegard.nossum@...cle.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
	netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
	Theodore Ts'o <tytso@....edu>, "nstange@...e.de" <nstange@...e.de>,
	"Wang, Jay" <wanjay@...zon.com>
Subject: Re: 6.17 crashes in ipv6 code when booted fips=1 [was: [GIT PULL]
 Crypto Update for 6.17]

On Mon, Oct 06, 2025 at 09:11:41PM +0200, Vegard Nossum wrote:
> The fact is that fips=1 is not useful if it doesn't actually result
> something that complies with the standard; the only purpose of fips=1 is
> to allow the kernel to be used and certified as a FIPS module.

Don't all the distros doing this actually carry out-of-tree patches to
fix up some things required for certification that upstream has never
done?  So that puts the upstream fips=1 support in an awkward place,
where it's always been an unfinished (and undocumented) feature.

- Eric