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 X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5BFDEC433ED for ; Tue, 20 Apr 2021 17:32:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 29B48613C9 for ; Tue, 20 Apr 2021 17:32:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233490AbhDTRdA (ORCPT ); Tue, 20 Apr 2021 13:33:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233381AbhDTRcy (ORCPT ); Tue, 20 Apr 2021 13:32:54 -0400 Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8E7AC06174A for ; Tue, 20 Apr 2021 10:32:22 -0700 (PDT) Received: by mail-ej1-x633.google.com with SMTP id g5so52781523ejx.0 for ; Tue, 20 Apr 2021 10:32:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8gplG+9IWvQuoNRL+JXMPE+0PdJp+Z/VjGIXtau6h+I=; b=h11A4XqVQ5m+6C611s/dtODxxzHe4778dEl548tUa84MqdLN/1XV7WK1IMzUSSN9Od VnvgJdVbSHQ/ImL9hfmZeA/wPSbzQWrsgOeMqo4LrMFTgKVLQXo/kssnETIoiOSNqXF2 +9CKxEzjfMwY19mG4Z7SY4V9KjsQEt4vbNotk2uwPu8nZYZW2of5Fu6ATNssl2Jl+ADN KprCeg0geSqGm1BuM/VAe8s2otgrvGsf50x9RNc8/FX5fX/n4m1wYTTYc3OgXUnis36k 6JhVjFqzN1QdwciBjvJBIkgOj6l410ZvUVqd9RdJqPWewVChWgInz7coHNkFB8O18R2f UZ1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8gplG+9IWvQuoNRL+JXMPE+0PdJp+Z/VjGIXtau6h+I=; b=oCRM5auO/ncqsa2Pd9RpQWfuQsBj37QUwRYz72ge0MOWpnEZYs9ZIyoOaTTqgVITyC kB1vkRusZiNDFBLXSVG6JGCREPmgrHY2bN83l7TTHaIk6saMVoOyCg9VUM2sBtfdJneX 0p8VjRA3Qt10khcFK3OAWoOjcQI5HC5r/Ed4ZhoQ3xPHggzQzkLqW0Mq6FVTsw0Dgxfh XPGfL63lSbdLbJdlQGXFjngaB1MPkDu0v/qMpY/gKjByCnCjEEO0O6PkDEOEaH9jsk+V YCvStds+okChrviKgiFh65/cG0UBB/O1mHUgS8Ewxml+2Lx2kbebKbQRRGeK+RPNdYBs tvcw== X-Gm-Message-State: AOAM530Efrg11zi8f8eXZA4joz1j+542BKhtl7t5Q3hzqB6k9iNPIRUu RB7dNJnTRMsHwM1DiEdcipmujwf5fMDlAMAqc8sUjA== X-Google-Smtp-Source: ABdhPJzOn7y5okWAFlw0xW1bqDHcjSKKZ3FzjRQhbt0MYpvhmlpKo3RbVc4qKURwgiYCMCk8hFP4aX57tXHPp1o0sM8= X-Received: by 2002:a17:906:4e51:: with SMTP id g17mr14564426ejw.18.1618939941345; Tue, 20 Apr 2021 10:32:21 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Tue, 20 Apr 2021 23:02:10 +0530 Message-ID: Subject: Re: BUG: KASAN: use-after-free in page_to_skb.isra.0+0x300/0x418 To: Eric Dumazet Cc: virtualization@lists.linux-foundation.org, Linux-Next Mailing List , open list , lkft-triage@lists.linaro.org, linux-mm , Guenter Roeck , Mat Martineau , Xuan Zhuo , Jason Wang , "Michael S. Tsirkin" , Alan Bennett Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 20 Apr 2021 at 19:47, Eric Dumazet wrote: > > On Tue, Apr 20, 2021 at 3:45 PM Naresh Kamboju > wrote: > > > > Following kernel BUG reported on qemu-arm64 running linux next 20210420 > > the config is enabled with KASAN. > > > > steps to reproduce: > > ---------------------------- > > - Build the arm64 kernel with KASAN enabled. > > - boot it with below command and you will notice > > /usr/bin/qemu-system-aarch64 -cpu host -machine virt,accel=kvm > > -nographic -net nic,model=virtio,macaddr=BA:DD:AD:CC:09:10 -net tap -m > > 1024 -monitor none -kernel kernel/Image.gz --append "console=ttyAMA0 > > root=/dev/vda rw" -hda > > rootfs/rpb-console-image-lkft-juno-20210414125244-133.rootfs.ext4 -m > > 4096 -smp 4 -nographic > > > > > > crash log: > > ------------- > > > > This is the fifth report, have you tried the proposed fix ? > > https://patchwork.kernel.org/project/netdevbpf/patch/20210420094341.3259328-1-eric.dumazet@gmail.com/ I have tested your patch now and the reported issue got fixed. Tested-by: Naresh Kamboju Tested log link, https://lkft.validation.linaro.org/scheduler/job/2555544#L208 - Naresh 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 X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24EC4C43461 for ; Tue, 20 Apr 2021 17:32:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 75830613C8 for ; Tue, 20 Apr 2021 17:32:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 75830613C8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id D93E86B006C; Tue, 20 Apr 2021 13:32:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D43BB6B006E; Tue, 20 Apr 2021 13:32:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BE51F6B0070; Tue, 20 Apr 2021 13:32:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0172.hostedemail.com [216.40.44.172]) by kanga.kvack.org (Postfix) with ESMTP id 9E11D6B006C for ; Tue, 20 Apr 2021 13:32:23 -0400 (EDT) Received: from smtpin35.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 32D87181AEF31 for ; Tue, 20 Apr 2021 17:32:23 +0000 (UTC) X-FDA: 78053439366.35.928404A Received: from mail-ej1-f41.google.com (mail-ej1-f41.google.com [209.85.218.41]) by imf07.hostedemail.com (Postfix) with ESMTP id 890BEA0003B8 for ; Tue, 20 Apr 2021 17:32:22 +0000 (UTC) Received: by mail-ej1-f41.google.com with SMTP id l4so59450238ejc.10 for ; Tue, 20 Apr 2021 10:32:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8gplG+9IWvQuoNRL+JXMPE+0PdJp+Z/VjGIXtau6h+I=; b=h11A4XqVQ5m+6C611s/dtODxxzHe4778dEl548tUa84MqdLN/1XV7WK1IMzUSSN9Od VnvgJdVbSHQ/ImL9hfmZeA/wPSbzQWrsgOeMqo4LrMFTgKVLQXo/kssnETIoiOSNqXF2 +9CKxEzjfMwY19mG4Z7SY4V9KjsQEt4vbNotk2uwPu8nZYZW2of5Fu6ATNssl2Jl+ADN KprCeg0geSqGm1BuM/VAe8s2otgrvGsf50x9RNc8/FX5fX/n4m1wYTTYc3OgXUnis36k 6JhVjFqzN1QdwciBjvJBIkgOj6l410ZvUVqd9RdJqPWewVChWgInz7coHNkFB8O18R2f UZ1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8gplG+9IWvQuoNRL+JXMPE+0PdJp+Z/VjGIXtau6h+I=; b=avsLkP1TzUIRo95Jmv3+iNPfn1r3S5HMjAodi09NVSAn+7ccadu0OSNaGXeymHN3kb Zr6bwnro3kHDEgbQTy5zsPwinDKiVAVv5cfnasgA3aBNomoCeZa8c7Eov/k8y89jyUfV cQGlLITC57W7AQ1bQShOCJ7PzOvRvhIUT9VN1xWcjDkwrbsSkbxgheLJDBjgbJ+Vq5H6 eNgfAh3Nr0ZMYPg+Yztj8HPZfZTeLR1FPwr0DMMt42DxsAkKGx1zV3zODwOy97Z+Ve5X eR7hoS8ohx7uZrFEyHpMIlb/C7OlGOvQapXOJ72l0Y2MxijV/RUrPbuwDV1qaPAForQI Xamg== X-Gm-Message-State: AOAM5304d2z8ssAN+1UEOtSqxbGWXz6vBxUUhIL3pgJRFjdIyoKa2C2a 5MVjCUUsL9Bfr6MdPVRYfODjpO+GoJuBSs3kdWfQ1Q== X-Google-Smtp-Source: ABdhPJzOn7y5okWAFlw0xW1bqDHcjSKKZ3FzjRQhbt0MYpvhmlpKo3RbVc4qKURwgiYCMCk8hFP4aX57tXHPp1o0sM8= X-Received: by 2002:a17:906:4e51:: with SMTP id g17mr14564426ejw.18.1618939941345; Tue, 20 Apr 2021 10:32:21 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Tue, 20 Apr 2021 23:02:10 +0530 Message-ID: Subject: Re: BUG: KASAN: use-after-free in page_to_skb.isra.0+0x300/0x418 To: Eric Dumazet Cc: virtualization@lists.linux-foundation.org, Linux-Next Mailing List , open list , lkft-triage@lists.linaro.org, linux-mm , Guenter Roeck , Mat Martineau , Xuan Zhuo , Jason Wang , "Michael S. Tsirkin" , Alan Bennett Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 890BEA0003B8 X-Stat-Signature: beefe7wx8k9swmnf55mfshno7ufepseo X-Rspamd-Server: rspam02 Received-SPF: none (linaro.org>: No applicable sender policy available) receiver=imf07; identity=mailfrom; envelope-from=""; helo=mail-ej1-f41.google.com; client-ip=209.85.218.41 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1618939942-392372 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 Tue, 20 Apr 2021 at 19:47, Eric Dumazet wrote: > > On Tue, Apr 20, 2021 at 3:45 PM Naresh Kamboju > wrote: > > > > Following kernel BUG reported on qemu-arm64 running linux next 20210420 > > the config is enabled with KASAN. > > > > steps to reproduce: > > ---------------------------- > > - Build the arm64 kernel with KASAN enabled. > > - boot it with below command and you will notice > > /usr/bin/qemu-system-aarch64 -cpu host -machine virt,accel=kvm > > -nographic -net nic,model=virtio,macaddr=BA:DD:AD:CC:09:10 -net tap -m > > 1024 -monitor none -kernel kernel/Image.gz --append "console=ttyAMA0 > > root=/dev/vda rw" -hda > > rootfs/rpb-console-image-lkft-juno-20210414125244-133.rootfs.ext4 -m > > 4096 -smp 4 -nographic > > > > > > crash log: > > ------------- > > > > This is the fifth report, have you tried the proposed fix ? > > https://patchwork.kernel.org/project/netdevbpf/patch/20210420094341.3259328-1-eric.dumazet@gmail.com/ I have tested your patch now and the reported issue got fixed. Tested-by: Naresh Kamboju Tested log link, https://lkft.validation.linaro.org/scheduler/job/2555544#L208 - Naresh