From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4A6BC54F30 for ; Tue, 27 May 2025 14:24:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CDB276B00A5; Tue, 27 May 2025 10:24:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C8BFD6B00A6; Tue, 27 May 2025 10:24:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B2C096B00A7; Tue, 27 May 2025 10:24:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 8E6CB6B00A5 for ; Tue, 27 May 2025 10:24:11 -0400 (EDT) Received: from smtpin15.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 331BC5A227 for ; Tue, 27 May 2025 14:24:11 +0000 (UTC) X-FDA: 83488907502.15.4333B0F Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf03.hostedemail.com (Postfix) with ESMTP id 27B522000A for ; Tue, 27 May 2025 14:24:08 +0000 (UTC) Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b="E9T1/N4q"; spf=pass (imf03.hostedemail.com: domain of oleg@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=oleg@redhat.com; dmarc=pass (policy=quarantine) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1748355849; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=igjUzzNJelnc5sFix9OSPpxKOxliykWoyTRNX1UpaKk=; b=Isg6A62x9gaSpK3kBh+SXUvlwbnLYKaRuJTvztFUmAQTXDJBA3IovGNiTNsh+KVaPZxuL6 WvAfiuvtzgK7G1XCtg0BU4QLuvAzpnKO+x01BMHQoUYLR61FhjFfLYoGFBvkmMAvofWa/e FF98jqSykI4xKPEyRq/6MISqWn1opJ8= ARC-Authentication-Results: i=1; imf03.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b="E9T1/N4q"; spf=pass (imf03.hostedemail.com: domain of oleg@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=oleg@redhat.com; dmarc=pass (policy=quarantine) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1748355849; a=rsa-sha256; cv=none; b=P/XhCfzmgtu2AKFUz+tHNtyNrmo4/+gcvWdhpDmBweyygGOotyhpJS/k1Q6RaP800EL0+K CNizHq4zRMWOKHPojb+P0Ow9NlCjipvdwlEIKKLhISqAesN/KOJoSCio1Cas8uwfC+Orsx ySUzwKGdLOK9Ktzx1urd/E9uOu08lSc= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1748355848; 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=igjUzzNJelnc5sFix9OSPpxKOxliykWoyTRNX1UpaKk=; b=E9T1/N4qI6Qm4w4yo/rcmp/fG9D/Si3Y4DpwBxKGm1Q050Qsb7IG09Bet5Buc2dtU7gDVp sRQ18m7ezM4FKgmtIV3g/vH+tydbXsmIhElEh1KD3P4mOOge8pjHabyyXDJmkA69G3rpTl Iouhq0hrVodRvtu6aib3L9uWLa2rJ5U= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-493-5vYREFoXNGa8e79FO1c2UA-1; Tue, 27 May 2025 10:24:04 -0400 X-MC-Unique: 5vYREFoXNGa8e79FO1c2UA-1 X-Mimecast-MFC-AGG-ID: 5vYREFoXNGa8e79FO1c2UA_1748355843 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 3B5221800ECC; Tue, 27 May 2025 14:24:02 +0000 (UTC) Received: from dhcp-27-174.brq.redhat.com (unknown [10.44.32.4]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id 196F818003FD; Tue, 27 May 2025 14:23:56 +0000 (UTC) Received: by dhcp-27-174.brq.redhat.com (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Tue, 27 May 2025 16:23:21 +0200 (CEST) Date: Tue, 27 May 2025 16:23:15 +0200 From: Oleg Nesterov To: Pu Lehui Cc: mhiramat@kernel.org, peterz@infradead.org, akpm@linux-foundation.org, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, vbabka@suse.cz, jannh@google.com, pfalcato@suse.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org, pulehui@huawei.com Subject: Re: [RFC PATCH v2 1/2] mm/mremap: Fix uprobe anon page be overwritten when expanding vma during mremap Message-ID: <20250527142314.GA8333@redhat.com> References: <20250527132351.2050820-1-pulehui@huaweicloud.com> <20250527132351.2050820-2-pulehui@huaweicloud.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250527132351.2050820-2-pulehui@huaweicloud.com> User-Agent: Mutt/1.5.24 (2015-08-30) X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Rspam-User: X-Rspamd-Queue-Id: 27B522000A X-Rspamd-Server: rspam09 X-Stat-Signature: bf9cpk8gaisizyt9qkpazxkt7s8fmui7 X-HE-Tag: 1748355848-548597 X-HE-Meta: U2FsdGVkX1+YqtiKqELDkUxOQGTwvdezOVoJ6GZX9VT/IDjzuo33aSZNY2Co6c0/v2YV2gMLAv+48MwwdfYEQMtJvFas7qLLLMExz1fBTMsLwDFJ/jgXVs6MJUQ5CQf2LloyG0c01qqxUbh5oPcjgpWGUy1whAKMltiIuXDqa4BGYkVuDPh3wCd4YO+cx2g0+W/41inQF/RjXDVfbUyhTuWbIFZP4BiDBAI6mXyauh7vcRVjkCpnZmv0APAXi8Shi0gGxJJ1oRsJjl+IIsUxdZ/zElj4keQEXUT9GSqlWvHZyMSrn6RVYBQbSumg8eM9vIdY6UdA2l6I5nCeC6+P5BJ6XzE9fu1fZb/nPtO9UujXJq1S2mVl73Iy+WaBsSxnkWLytmP9JTIQiMxP6f9c+R1rLgvWr7Xx1Noghmvz7H91PLwew/tEU+mDP642KCvB+VKjRdIrE3R0EGlhhQpuOTjeLkQrCgjeTMAmOEC500dP93GygrwDAp/AttfhMI96DPDAXuU0BNKZSYa4MEpxLdoGeiLUliDahbZwFHZ6EQeVqx5DFxwrN+oyZx6hE1xUhM0UwWHTnCsMt+1lRluFavNhAq9zUvgQl2F08AvrSTmw0jFYmQ6RMWrbj9fj3lMQGFcQXBrGNAk/2KtDkg60r+NPVRBK8QdTi4fNzKlcYlw0ZGZpZeMmRWh00LgmixnjZUDgKCPCclAgWlFfNXSG92A6rmdChkXrjxJv0dkxsXxtmmeZdNEgnVptwvZYo44vD1O1Dw2TS2UeVTom9sT2nFQ1kXdwpGdYUQdS06UXo9alD8HCUEjpv4mc/11Yuwjjy9J7/gTRY5nS60p/sNmqA++bStR4+/eF8jm6newa1wm6Lq+fzPcfNP6cJoFWhlOxPnTe80inOTQ3EzeN/O/VRBuUs00kWzLSzKsZPnXuHppZX9OUw1URYuRnnksE6z27jsPrc+OlAS96rgtJ7Em NF9JqGta o3KBB8Kd9CYnKlnhfqy0V7CYQzfFId/quQIea7sxor69x7YE/97uH3TDH+Rcq668y0pIqA3WF+Ek3Qcq6mXiquZpHFuI/U7kUaVsnzGM1xwuNRdAxBtIv+rFtmIshWO1vYeJQfc+ct2Cp3Au9sCcMor32Ra6pNz3Jdf7yukXeb5bQGMlP3I3u+wEv2WwnM7RrFipir1AmJ6HGBSTCQJ0arsxco1io4xhPh8fVb6BciX79hbH68tfrj2wImtajIZBLcdAL6kqf0eU2W/isqW+OfFw/I0XSAJaHia6IDzkfQte6YH9XKUT+cmH7kam+SXrXxpBB X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Well, I leave this to you / Lorenzo / David, but... On 05/27, Pu Lehui wrote: > > Fixes: 78a320542e6c ("uprobes: Change valid_vma() to demand VM_MAYEXEC rather than VM_EXEC") I don't think that commit could cause this problem. Oleg.