From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 20A16149C51 for ; Fri, 22 Aug 2025 03:39:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755833994; cv=none; b=mQliyhkp4WEPZAIJ4xu4q1scp53AVfKRhkVfOGmNYmXf6lAWwtQzWHB1yn3hzmyEGYcXWLhFcCqB+4JyzG+RcRkByFjcrt4qmwCCrTkr409WRpWsgDpVCFKcj62Em+D7dVioPnFx2yS88pPqC7KOBCouXbQAOYcLzolWCKXAgzM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755833994; c=relaxed/simple; bh=0ndn9ErCLYbYq32kF5PwwmdLS4zM7/PUlxoWqoh8W98=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uvDhC/RupvZKf8lOn6f0CxpUsXKMDT3UgFS7BF0aSH0Zc4bGLyAMoSob4zdJmnt1nxRSFfHw5GunmklQSd3C43rcibbimaV0p1TIXYrzkOFxWIOnYGlMuwYYYVgj6BhXPKPy40C1vE78ydD3jOrgymmP5o2kOZmGIVO0YH/JpNE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=C1Wkn5/+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="C1Wkn5/+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76F41C4CEEB; Fri, 22 Aug 2025 03:39:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755833993; bh=0ndn9ErCLYbYq32kF5PwwmdLS4zM7/PUlxoWqoh8W98=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=C1Wkn5/+86mKI51A3qkZ6+ezMG6l/1X/84q1sjNDKeezMg/ArIVlh+aGtQG5GRX/1 SUgmow5Ctf407ebY9HuPQHKRBkercmOuYK3WgJ7c7eJqpZRAE7WDx8kWFfGdHinzVF jpEfYmKecE6nOiM5C7dPBt+/J03IbM6RcwhxhvxZ9VkX/70xSgZPTo+vdbif0Ciq1m IcALsa4BykScLAUwKMNcpZTRa3ocnq6+Ho+dnRSYDNg0AIwlX3hJF3FNELFTeZonh2 51flSnFzE5GqXuoKHnGgalVuSHu+o6CyOaLQTWhvMRkdlzNU6TcDxMtW1Mm7fSzcuS OnNBbg566ZhjQ== Date: Thu, 21 Aug 2025 23:39:51 -0400 From: Eric Biggers To: Sasha Levin Cc: stable@vger.kernel.org, Herbert Xu Subject: Re: [PATCH 6.12.y 4/4] crypto: x86/aegis - Fix sleeping when disallowed on PREEMPT_RT Message-ID: <20250822033951.GB80178@quark> References: <2025082102-shrug-unused-8ce2@gregkh> <20250822030617.1053172-1-sashal@kernel.org> <20250822030617.1053172-4-sashal@kernel.org> <20250822032304.GA80178@quark> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Aug 21, 2025 at 11:28:56PM -0400, Sasha Levin wrote: > On Thu, Aug 21, 2025 at 11:23:04PM -0400, Eric Biggers wrote: > > On Thu, Aug 21, 2025 at 11:06:17PM -0400, Sasha Levin wrote: > > > From: Eric Biggers > > > > > > [ Upstream commit c7f49dadfcdf27e1f747442e874e9baa52ab7674 ] > > > > > > skcipher_walk_done() can call kfree(), which takes a spinlock, which > > > makes it incorrect to call while preemption is disabled on PREEMPT_RT. > > > Therefore, end the kernel-mode FPU section before calling > > > skcipher_walk_done(), and restart it afterwards. > > > > > > Moreover, pass atomic=false to skcipher_walk_aead_encrypt() instead of > > > atomic=true. The point of atomic=true was to make skcipher_walk_done() > > > safe to call while in a kernel-mode FPU section, but that does not > > > actually work. So just use the usual atomic=false. > > > > > > Fixes: 1d373d4e8e15 ("crypto: x86 - Add optimized AEGIS implementations") > > > Cc: stable@vger.kernel.org > > > Signed-off-by: Eric Biggers > > > Signed-off-by: Herbert Xu > > > Signed-off-by: Sasha Levin > > > --- > > > arch/x86/crypto/aegis128-aesni-glue.c | 8 ++++++-- > > > 1 file changed, 6 insertions(+), 2 deletions(-) > > > > 1. Missing Cc of the relevant mailing lists > > 2. Missing cover letter > > This was sent following the instructions in the FAILED: email generated by > Greg. If you feel its insufficient, take it up with him. You're one of the stable maintainers. You can't just deflect and claim this is not your problem. > > 3. Missing base-commit, and doesn't apply to stable/linux-6.16.y > > As the subject line indicates, this applies on 6.12, not 6.16. > > > 4. Two different series were sent out, both containing this patch > > You might have missed that they're for different trees? > Sorry, I meant to write 6.12. 6.12 was indeed what I tried to apply it to, and it failed. And there are two series for 6.12, see https://lore.kernel.org/stable/20250822030632.1053504-4-sashal@kernel.org and https://lore.kernel.org/stable/20250822030617.1053172-4-sashal@kernel.org/ They were sent only 14 seconds apart, so these submissions appear to be automated. - Eric