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 B904FC433F5 for ; Tue, 21 Dec 2021 09:23:40 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 518716B0078; Tue, 21 Dec 2021 04:23:40 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4C84C6B007B; Tue, 21 Dec 2021 04:23:40 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3B8A26B007D; Tue, 21 Dec 2021 04:23:40 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0237.hostedemail.com [216.40.44.237]) by kanga.kvack.org (Postfix) with ESMTP id 298016B0078 for ; Tue, 21 Dec 2021 04:23:40 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id D9F89180220CA for ; Tue, 21 Dec 2021 09:23:39 +0000 (UTC) X-FDA: 78941263758.24.7B3593C Received: from mail-qk1-f178.google.com (mail-qk1-f178.google.com [209.85.222.178]) by imf10.hostedemail.com (Postfix) with ESMTP id 16C21C0019 for ; Tue, 21 Dec 2021 09:23:32 +0000 (UTC) Received: by mail-qk1-f178.google.com with SMTP id f138so499946qke.10 for ; Tue, 21 Dec 2021 01:23:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Xzwisqb1Sy2od8aWgP/bz4IaYgTJ8bQBQSdhNAj9vNM=; b=VyLPgc+N3ejMZB5IuZpuMhrPHt40i6UgHuVzvVUlYzns/vLh7SllYTfzOm95Ydu08d bx7Ijb4zr3t69OAIEg9m0V6YlE33teplPktDpkPw0gG63SHbfd16CU+wVWw+Oef1tcku P/vcm1/Ru/jSA5g0tcErfFLo7NpZdN66pUoNO53kYQf3CiY4BMfHPfNhbFjVvTFOKqWp iaGgdXRexxwOQKTIM3+EhOj9fgBa4giaI8mSMwEdsb5MTMgEUJDkb8OulUL+3ClUD/Ub AZVUBHrqVyBimX6Rl6yaNdzGUI1dm7GgJgbXeDKaxqHBSAY0bTYqzWr9wU6738yOmXy5 IWDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Xzwisqb1Sy2od8aWgP/bz4IaYgTJ8bQBQSdhNAj9vNM=; b=rdrQtjWbIUb7X2fPp2il5/j6wpgQ55kNmB5lrPFm6CvSKEZxLBkd0ybCXZBsCFv/3U +cuotIQ1lVhJC0B3OT3JaUOYzCVV3BGWLNyDadw25oXDEPjR1FymCAkPmuB3IZNUoSAb G9+SLspo/nlvhTq9guhAvEIUVtEGOtOKWkN3FBJB79c+Nqc9l7EmWXtfvNCgET+MkXe0 S7jDL/TCZUhGGAlC2jvrtyAYno2wTJdIL7rlWXLRT58pYli9UnZdXKLECTCwUGwUGvpo dWvASDp0FtQPIR2tAS2MWZahR4cvDdDF79U5zDFxG6RXy/ejJcFdDmGfd7bjCAB/kslq 7Z2A== X-Gm-Message-State: AOAM5334MnEWWjGRdvmzpPIPrs7IrW7mER+WffqPiMeKXJwKYThskz44 ymFfyboQZsBbQgTVVfb5xS1E1fsTixUx9GFISTZi6w== X-Google-Smtp-Source: ABdhPJwUQwtUA7ETB7iiXK+EgRxi4jixcxQLCwfTNYX/jDe2+vsavoXHf7aXOqIotNdigbbLBx3ZmfbySHD7LauTBvM= X-Received: by 2002:a05:620a:2848:: with SMTP id h8mr1353598qkp.610.1640078618621; Tue, 21 Dec 2021 01:23:38 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Alexander Potapenko Date: Tue, 21 Dec 2021 10:23:02 +0100 Message-ID: Subject: Re: [PATCH mm v4 16/39] kasan: define KASAN_VMALLOC_INVALID for SW_TAGS To: andrey.konovalov@linux.dev Cc: Marco Elver , Andrew Morton , Andrey Konovalov , Dmitry Vyukov , Andrey Ryabinin , kasan-dev , Linux Memory Management List , Vincenzo Frascino , Catalin Marinas , Will Deacon , Mark Rutland , Linux ARM , Peter Collingbourne , Evgenii Stepanov , LKML , Andrey Konovalov Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 16C21C0019 X-Stat-Signature: 8g84wkucogokjobsnge9z7jes4yw5ddf Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=VyLPgc+N; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf10.hostedemail.com: domain of glider@google.com designates 209.85.222.178 as permitted sender) smtp.mailfrom=glider@google.com X-Rspamd-Server: rspam02 X-HE-Tag: 1640078612-503137 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: On Mon, Dec 20, 2021 at 11:00 PM wrote: > > From: Andrey Konovalov > > In preparation for adding vmalloc support to SW_TAGS KASAN, > provide a KASAN_VMALLOC_INVALID definition for it. > > HW_TAGS KASAN won't be using this value, as it falls back onto > page_alloc for poisoning freed vmalloc() memory. > > Signed-off-by: Andrey Konovalov Reviewed-by: Alexander Potapenko