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=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 31503C433B4 for ; Tue, 20 Apr 2021 14:17:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E801F613B2 for ; Tue, 20 Apr 2021 14:17:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232535AbhDTORe (ORCPT ); Tue, 20 Apr 2021 10:17:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48804 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231422AbhDTORc (ORCPT ); Tue, 20 Apr 2021 10:17:32 -0400 Received: from mail-yb1-xb31.google.com (mail-yb1-xb31.google.com [IPv6:2607:f8b0:4864:20::b31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A268DC06138A for ; Tue, 20 Apr 2021 07:17:00 -0700 (PDT) Received: by mail-yb1-xb31.google.com with SMTP id z1so43135606ybf.6 for ; Tue, 20 Apr 2021 07:17:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=wWa/Pvzykr9jxpXsZVGAYuoX86X+fgUShL4fzcLfV1k=; b=rxkxBUOfV9PeFmI8f4UzV30pWj7o2G5EMnBAUucaJYciyE3r2PYkSbB4wBLA76+mVw g/ytbkuqljIFseX4QssJ1DniLoUd5DVTWewWzhuXEu3KH4JyvwR+8QOZJShwy+Op+rRF 33b13XgoxWeypl0NcwLVSWifS/KBfCHUDEFa0uanALE6thx5yf7TpXO3OQpaTt0x0Uiq uIqErfEyGBUSkzG9guSsD+MNbHBUJ9JBBO6dBtWoTAikQZBgJgrEkvaJrfzrhZw5kT86 bOFQyWv59mj0zPN3UBU6rXQtRGuhOggK0zUYJcpSlDluoc9Y06vSGd3JMrDLjuRJKcgC ZOIw== 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=wWa/Pvzykr9jxpXsZVGAYuoX86X+fgUShL4fzcLfV1k=; b=j+ATLKVDBL22mu8icjerH7/klp9JdSrUH2PbU57QDilAIeWsR28uS2aGzm6mF5H6Cg NAo2B4tjrfL+rY1vaVe/tC0DL8tV0BiuCy382gjFIPZNpGctPovVvTaRRqsniP7S1IiH +e2AFihive5tZdDYf23SAs0N96OfluUsxNwF3yT3pXGpnHkE9fBfHnkLpgLcWnmPPPc9 +ePKi/j0LK4+gX6mzZdVLIfIsm7uUJWKo2GgEwXbAy1H4GS2clsZJ7my/aGHnGQxvPRP +7lWXdNNURS/3IM7cueWg5NnBQZVsmr9NSzvLXCZbrhwzFiEzbrmQkmp+y6Tm/A21lU4 6CbA== X-Gm-Message-State: AOAM530OSUNi/mgYtSbQTplspuO/clgg/D7ztrDs0IxVXsAk8c6rCOL1 luY2FgqnHzfbDuI97z2anF9IrPYeK5vPurfFc+DbQA== X-Google-Smtp-Source: ABdhPJwcojOkAiBJUuT7EFTGaIOyskZb+NL+/fvTT6dzWoPHzaSCq09qM1Msn7okEt4IgVBpCc1Q9JnDUhsPdJVZJWU= X-Received: by 2002:a25:4883:: with SMTP id v125mr23500327yba.253.1618928219291; Tue, 20 Apr 2021 07:16:59 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Eric Dumazet Date: Tue, 20 Apr 2021 16:16:48 +0200 Message-ID: Subject: Re: BUG: KASAN: use-after-free in page_to_skb.isra.0+0x300/0x418 To: Naresh Kamboju 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, 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/ 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=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 86256C433ED for ; Tue, 20 Apr 2021 14:17:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E8FCA613AF for ; Tue, 20 Apr 2021 14:17:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E8FCA613AF Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 5BB816B006E; Tue, 20 Apr 2021 10:17:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 544506B0070; Tue, 20 Apr 2021 10:17:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 396556B0071; Tue, 20 Apr 2021 10:17:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0058.hostedemail.com [216.40.44.58]) by kanga.kvack.org (Postfix) with ESMTP id 183CA6B006E for ; Tue, 20 Apr 2021 10:17:01 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C15E8181AEF30 for ; Tue, 20 Apr 2021 14:17:00 +0000 (UTC) X-FDA: 78052947000.30.5B311E5 Received: from mail-yb1-f181.google.com (mail-yb1-f181.google.com [209.85.219.181]) by imf10.hostedemail.com (Postfix) with ESMTP id 2952C40002FE for ; Tue, 20 Apr 2021 14:16:53 +0000 (UTC) Received: by mail-yb1-f181.google.com with SMTP id v3so40810827ybi.1 for ; Tue, 20 Apr 2021 07:17:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=wWa/Pvzykr9jxpXsZVGAYuoX86X+fgUShL4fzcLfV1k=; b=rxkxBUOfV9PeFmI8f4UzV30pWj7o2G5EMnBAUucaJYciyE3r2PYkSbB4wBLA76+mVw g/ytbkuqljIFseX4QssJ1DniLoUd5DVTWewWzhuXEu3KH4JyvwR+8QOZJShwy+Op+rRF 33b13XgoxWeypl0NcwLVSWifS/KBfCHUDEFa0uanALE6thx5yf7TpXO3OQpaTt0x0Uiq uIqErfEyGBUSkzG9guSsD+MNbHBUJ9JBBO6dBtWoTAikQZBgJgrEkvaJrfzrhZw5kT86 bOFQyWv59mj0zPN3UBU6rXQtRGuhOggK0zUYJcpSlDluoc9Y06vSGd3JMrDLjuRJKcgC ZOIw== 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=wWa/Pvzykr9jxpXsZVGAYuoX86X+fgUShL4fzcLfV1k=; b=H/ioMIqFQLx+fwUWJM8ycbLIffjHWLHsTBptjQn5iOEq/UmrESBVcUdU0PWSIqORu4 51UkKBn2pRlOGDGlykLmfHA+E62a57DrvHiIA1sc8ATOQate1klGVRKOHc3RdjDHt9dV NYIFWPmUIK6A+F4lwjdwGMo/YaZnDBs93ZP0wzFuZWGVRs6ixbzWBt1zcHVSYuu7aeNn YIAI5r5kHvkegR4n09VhqUQOZlAkO/J8LtqNG2l2TWt6x6sULDAL8dCMDgy4JkmuR/lO ZKWLmfkAqt6au72exnCJmrrq+fnEaVCJhc95cR8kgvJDRMNgc7eQvI2ZmHexnQUKYXkc lR6g== X-Gm-Message-State: AOAM531/OV1EbYPPUYTYgRYqw+PR0MKIw24c0AzT/XxGU1tewkSYjvd4 8p46V9IdFF+zneEQF4BTj14tz18pRtsN5vQWO6GhZA== X-Google-Smtp-Source: ABdhPJwcojOkAiBJUuT7EFTGaIOyskZb+NL+/fvTT6dzWoPHzaSCq09qM1Msn7okEt4IgVBpCc1Q9JnDUhsPdJVZJWU= X-Received: by 2002:a25:4883:: with SMTP id v125mr23500327yba.253.1618928219291; Tue, 20 Apr 2021 07:16:59 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Eric Dumazet Date: Tue, 20 Apr 2021 16:16:48 +0200 Message-ID: Subject: Re: BUG: KASAN: use-after-free in page_to_skb.isra.0+0x300/0x418 To: Naresh Kamboju 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-Stat-Signature: hqyhfa7obthkh3oub4sde81ia6r7gg9g X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 2952C40002FE Received-SPF: none (google.com>: No applicable sender policy available) receiver=imf10; identity=mailfrom; envelope-from=""; helo=mail-yb1-f181.google.com; client-ip=209.85.219.181 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1618928213-844885 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, 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/