From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 8361B143897 for ; Thu, 1 Aug 2024 19:08:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722539306; cv=none; b=Khe/DTzoJckkR0bqTBbh15qnPykUmuizBY3RadY+8mRY4EprrNZbfEVdyH/knLJHxifyZaHFvUoa+FbD8rBEdqxXw7DoPyFirJhWPjMrrSHgYpgvn8I4vIEPWkQ33qF9fF3Fy0HD731UjjC4clqHGs9gN9P//epVAtT1jnvV29M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722539306; c=relaxed/simple; bh=VFQ6vc7m2LcMWbo83coD+PFYONi2nTZuiz1vFUAQoSs=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=SBNsa66I6ZMxXH9X22nR7wh61caYv92QeuUQePwGo0eq64R0onfggxOKelTsLwzBm5EkpdpFMMr1ibSeSE6brXYbnFVPD10ctJjv+qzsEyHJ+E+hqVOt+OT4eVv+3uwMZHc2iKdTzqTBN/NeGjwC774b+Cln34n5ENDhi5DDcwE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=onMTodDX; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=J47zcBmQ; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="onMTodDX"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="J47zcBmQ" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1722539303; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7rFecauNrUJNv4kCU5uw04s4iBRr3/U9tBY9AZZrRmk=; b=onMTodDXidhdmWrMSTTFcc+l4BcdIiPrQtndgl1mByyHD9M3PQHW048XwTzfGFJNQIViKQ X5h9Qpaoy6boTMagw5bw/beRgjvy5wz/3lAlODZLgs54eFjDWEauNeIjbXbWuF1Z2SiZI4 pkm/hTNkTgFvePfi/Od8p2XiR4I9OxEx3SeDfGtIHYdXWIok+jPXz4mDvzUgZy0ZFeQNGd H0ubf++zpiDBBY/JWUNSRDCWoykVMkr+yItIgz6EBw1BSTky+cwkIns78+lsGL0d7jCYrL YzkARi0cMlMNW4Y3NqDeaeNz2BU4syQuU+Kutd+i35B/23oFBU1P2E2dX5H5LQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1722539303; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7rFecauNrUJNv4kCU5uw04s4iBRr3/U9tBY9AZZrRmk=; b=J47zcBmQQS+NtpGqMjcn8mdgm6Ygvp4UnCQiFKl82CHwSZforU3lhU2XABuZ8O2UnY4Ihh WGR7loC2EmvBbdAA== To: Linus Torvalds , David Gow Cc: Kees Cook , Borislav Petkov , Ingo Molnar , Dave Hansen , Peter Zijlstra , Andrew Morton , "H . Peter Anvin" , x86@kernel.org, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86/uaccess: Zero the 8-byte get_range case on failure In-Reply-To: References: <20240801063442.553090-2-davidgow@google.com> Date: Thu, 01 Aug 2024 21:08:23 +0200 Message-ID: <87frro2h94.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Thu, Aug 01 2024 at 09:24, Linus Torvalds wrote: > On Wed, 31 Jul 2024 at 23:35, David Gow wrote: > But I'm also not going to argue that this is really worth pursuing on > 32-bit if anybody is in the least worried. > > It's on life support, not like it's actively maintained. Your original > patch may not be exactly "pretty", but it clearly fixes the problem > without playing any games. I queue that oe up and if someone really cares, then it can be updated, but I doubt it's worth the trouble. Thanks, tglx