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X-CSE-ConnectionGUID: TqbKPWruRGyt2UF7ylN6tw== X-CSE-MsgGUID: OQtaqdrrRxCmUoAWL2s4ZA== X-IronPort-AV: E=McAfee;i="6800,10657,11899"; a="89120717" X-IronPort-AV: E=Sophos;i="6.25,269,1779174000"; d="scan'208";a="89120717" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2026 06:58:09 -0700 X-CSE-ConnectionGUID: PfIrr5wLTAWDXOlaVC2hgw== X-CSE-MsgGUID: iVO1jWoaTcqeAnAontUf+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,269,1779174000"; d="scan'208";a="270521728" Received: from aduenasd-mobl5.amr.corp.intel.com (HELO [10.125.111.91]) ([10.125.111.91]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Sep 2026 06:58:09 -0700 Message-ID: <54f55b19-4a42-4c5d-a6ec-979132e11ece@intel.com> Date: Tue, 8 Sep 2026 06:58:08 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [tip: x86/urgent] x86/mm/pat: Acquire init_mm write lock on collapse to avoid UAF To: Mike Rapoport Cc: "Lorenzo Stoakes (ARM)" , Dave Hansen , linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org, Jiri Slaby , "Kiryl Shutsemau (Meta)" , "David Hildenbrand (Arm)" , Will Deacon , David Carlier , Atish Patra , Nikunj A Dadhania , stable@vger.kernel.org, x86@kernel.org, Ingo Molnar References: <20260813-cpa-fixes-v2-1-39b4ff90f91d@kernel.org> <178821524784.3717435.3293914321834699913.tip-bot2@tip-bot2> <7fe0aee9-d1e9-419c-9ca6-c0160223d5dc@intel.com> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/8/26 02:32, Mike Rapoport wrote: > I have to say I'm confused with today's batch of tip-bot emails saying Ingo > applied these to x86/mm :/ Just a reminder that we have x86/urgent which will be going to Linus like today. There's also x86/mm which goes up in the next merge window.. The "Fix effective RW computation" patch is getting broken out and is going to wait for the next merge window. We don't want it sitting in mainline generating warnings, especially false positives like the one this weekend. That's not to disparage the patch; it's overall the right thing to do. Sound good?