From: Dave Hansen <dave.hansen@intel.com>
To: Jiri Slaby <jirislaby@kernel.org>,
linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org
Cc: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>,
"Mike Rapoport (Microsoft)" <rppt@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.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 read lock on attribute change to avoid UAF
Date: Tue, 1 Sep 2026 06:46:43 -0700 [thread overview]
Message-ID: <c44be9cc-7157-4c0c-b98f-61e432c85629@intel.com> (raw)
In-Reply-To: <ea12e0a4-36b3-4c71-8930-72fc4eaf369f@kernel.org>
On 8/31/26 23:05, Jiri Slaby wrote:
> Ah, this belongs to the "Acquire init_mm *write* lock" counterpart. Not
> sure how you managed to split/combine these two 😎.
Hurrying at the end of the day and being a bonehead will do it.
I'm going to back them out from x86/urgent and take a fresh go at it
today, post-coffee.
next prev parent reply other threads:[~2026-09-01 13:46 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)
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 [this message]
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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