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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4379EC4332F for ; Mon, 19 Dec 2022 13:15:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232030AbiLSNP2 (ORCPT ); Mon, 19 Dec 2022 08:15:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231292AbiLSNPZ (ORCPT ); Mon, 19 Dec 2022 08:15:25 -0500 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4877EE0E for ; Mon, 19 Dec 2022 05:15:23 -0800 (PST) Received: by mail-il1-f200.google.com with SMTP id l13-20020a056e021c0d00b003034e24b866so6626933ilh.22 for ; Mon, 19 Dec 2022 05:15:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=i5pIBPsEmmbOZ3cWYLkpKPQNIVoJt0tl6jhanWf54i8=; b=DFBm4F7UTbCbmfAy3h5Ta63YcZdGq2oBBIhbK+6zm3Mc+NDkmXlPQ2C4L+FKujPWzY gUDn1jtTKoWv70gH01ItIiz09rN/CJzg6DgU3CB1goPDAPtc2OmXmJh4uuqUC9kEGNjI /qWzalPHuWPCXjtlLeXvGk1L91xmvP5BtXwAcMkCEdU6uusfPWAOvsm8Bk+lie3f1Y35 lN1Z5oxzqJJ7jPwBrmjeKmzPfsYQfzwnItHM33kq+nG9BjDjfBF4QO+Ykwr0DmLljmwT F8P+iMlOQg2O3Wi9fLTDeAfSRhUEuFAmgehAsdLp5kwoN1+VuLj/vmNPmy0ONjIG/tV4 rQzg== X-Gm-Message-State: ANoB5plgiBMaYanj1xXmAXH0MzHQeWp+xK4l2ysUXF8bVOVHEc2mLlvz GHCA7A7D+Xo+xa6h5pmAc45jpYNXbZC+6gaxQz7cf71da78v X-Google-Smtp-Source: AA0mqf4/oq6yF17x9pdmJqrm/OifNE6JbU1V614xKFhuKiVdYrSZZKaCzzVqr107vezsOVOHzk0npyskEk3IZpKulbYvYBeZRbiH MIME-Version: 1.0 X-Received: by 2002:a92:db01:0:b0:302:a711:8127 with SMTP id b1-20020a92db01000000b00302a7118127mr37398004iln.123.1671455723251; Mon, 19 Dec 2022 05:15:23 -0800 (PST) Date: Mon, 19 Dec 2022 05:15:23 -0800 In-Reply-To: <20221219124321.1504-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a473b905f02e1c4d@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in put_pmu_ctx From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5552 } 2685 jiffies s: 2817 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: f9ff5644 Merge tag 'hsi-for-6.2' of git://git.kernel.o.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master console output: https://syzkaller.appspot.com/x/log.txt?x=1337f01b880000 kernel config: https://syzkaller.appspot.com/x/.config?x=3263313469e7ca77 dashboard link: https://syzkaller.appspot.com/bug?extid=b8e8c01c8ade4fe6e48f compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=10acb79d880000