From: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>,
linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org,
"Mike Rapoport (Microsoft)" <rppt@kernel.org>,
Jiri Slaby <jirislaby@kernel.org>,
"Kiryl Shutsemau (Meta)" <kas@kernel.org>,
"David Hildenbrand (Arm)" <david@kernel.org>,
Will Deacon <will@kernel.org>,
David Carlier <devnexen@gmail.com>,
Atish Patra <atishp@meta.com>,
Nikunj A Dadhania <nikunj@amd.com>,
stable@vger.kernel.org, x86@kernel.org
Subject: Re: [tip: x86/urgent] x86/mm/pat: Acquire init_mm write lock on collapse to avoid UAF
Date: Wed, 2 Sep 2026 07:53:53 +0100 [thread overview]
Message-ID: <apfHa6QBI4Fjz2Gn@gremlin> (raw)
In-Reply-To: <7fe0aee9-d1e9-419c-9ca6-c0160223d5dc@intel.com>
On Tue, Sep 01, 2026 at 04:36:38PM -0700, Dave Hansen wrote:
> On 9/1/26 00:10, Lorenzo Stoakes (ARM) wrote:
> > Dave - you've somehow applied this patch completely incorrectly to x86/urgent,
> > I'm not happy with this going to Linus in this form :/
>
> Me neither, btw.
Yeah, sorry to complain so loudly, but just obviously want to make sure these
are sorted correctly!
>
> So, here it is applied:
>
> > https://git.kernel.org/pub/scm/linux/kernel/git/daveh/devel.git/log/?h=cpa1
>
> The diffstat exactly matches the mbox that I sucked in. I'm going to
> launch some tests overnight.
Thanks!
I had a look through and all LGTM :)
>
> The only things I really munged were a little merge issue with patch 1,
> a SoB ordering issue in patch 3, and a few scattered rewordings in the
> commit messages.
That's all good of course!
>
> Not pushed to x86/urgent, yet.
Ack, understood that you want to beat them about a bit with some tests, let me
know if there's anything else you need on these!
--
Cheers, Lorenzo
next prev parent reply other threads:[~2026-09-02 6:54 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 9:01 [PATCH v2 0/5] x86/mm/pat: CPA fixes Mike Rapoport
2026-08-13 9:01 ` [PATCH v2 1/5] x86/mm/pat: acquire init_mm write lock on collapse to avoid UAF Mike Rapoport
2026-08-31 22:27 ` [tip: x86/urgent] x86/mm/pat: Acquire " tip-bot2 for Lorenzo Stoakes (ARM)
2026-09-01 6:03 ` Jiri Slaby
2026-09-01 7:10 ` Lorenzo Stoakes (ARM)
2026-09-01 23:36 ` Dave Hansen
2026-09-02 6:53 ` Lorenzo Stoakes (ARM) [this message]
2026-09-02 18:33 ` tip-bot2 for Lorenzo Stoakes (ARM)
2026-08-13 9:01 ` [PATCH v2 2/5] x86/mm/pat: acquire init_mm read lock on attribute change " Mike Rapoport
2026-08-31 22:27 ` [tip: x86/urgent] x86/mm/pat: Acquire " tip-bot2 for Lorenzo Stoakes (ARM)
2026-09-01 6:05 ` Jiri Slaby
2026-09-01 7:20 ` Lorenzo Stoakes (ARM)
2026-09-01 13:46 ` Dave Hansen
2026-09-02 18:33 ` tip-bot2 for Lorenzo Stoakes (ARM)
2026-08-13 9:01 ` [PATCH v2 3/5] x86/alternative: exclude text poking against change_page_attr() Mike Rapoport
2026-08-25 9:37 ` Jiri Slaby
2026-08-31 22:27 ` [tip: x86/urgent] x86/alternative: Exclude " tip-bot2 for Pedro Falcato
2026-09-01 6:16 ` Jiri Slaby
2026-09-01 7:18 ` Lorenzo Stoakes (ARM)
2026-09-01 7:22 ` Jiri Slaby
2026-09-01 7:24 ` Lorenzo Stoakes (ARM)
2026-09-02 18:33 ` tip-bot2 for Pedro Falcato
2026-08-13 9:01 ` [PATCH v2 4/5] x86/mm/pat: allocate split page tables as kernel page tables Mike Rapoport
2026-08-31 22:27 ` [tip: x86/urgent] x86/mm/pat: Allocate " tip-bot2 for Lorenzo Stoakes (ARM)
2026-09-02 18:33 ` tip-bot2 for Lorenzo Stoakes (ARM)
2026-08-13 9:01 ` [PATCH v2 5/5] x86/mm/pat: fix effective RW computation in lookup_address_in_pgd_attr() Mike Rapoport (Microsoft)
2026-08-13 9:45 ` Lorenzo Stoakes (ARM)
2026-08-31 22:27 ` [tip: x86/urgent] x86/mm/pat: Fix " tip-bot2 for Mike Rapoport (Microsoft)
2026-09-02 18:33 ` tip-bot2 for Mike Rapoport (Microsoft)
2026-09-05 4:42 ` Nathan Chancellor
2026-08-13 15:05 ` [PATCH v2 0/5] x86/mm/pat: CPA fixes Nikunj A. Dadhania
2026-08-13 15:07 ` Lorenzo Stoakes (ARM)
2026-08-13 15:23 ` Pedro Falcato
2026-08-13 17:13 ` Andrew Morton
2026-08-25 7:12 ` Atish Patra
2026-08-25 7:31 ` Lorenzo Stoakes (ARM)
2026-08-25 20:05 ` Atish Patra
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