From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 36BDB25A629 for ; Fri, 17 Jan 2025 00:41:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737074474; cv=none; b=QOQlI/pp70APkdFLrqsEDdRhuP7ZmWK7LicmO6e/p418bylFMneUJkcp8Ktfl8IpgX1YdDIUmGu6udV5QLUHo1oM1ESGnHtmFkhAkOclZC5QnctkLHH7I4RwjNY2+HrqevfR48ZkZLGdEft9LPKn0uOuLvxMsBHd5qiHty0+Cig= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737074474; c=relaxed/simple; bh=B0ZLN9+knAFar+V3kplinHUGBF6kh7xxiQFRld8LnrU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=OI4gt4DR0wsU7XoZ2i8XTxBiugvpIkLG/R1Xf7smIoprXC/E25Kzk6xcTXNYDbXXiqUzrApZh4x8MJvLaPOkG+a+dggPwgYIg5fRtE0NTVklRXeH7ew2rxBQ+WD5N2feUj5O+IhmVQbpTVBqalsnSduGaOobQa4wIZgEOG17l0o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-84f5453bfeeso238210339f.0 for ; Thu, 16 Jan 2025 16:41:12 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1737074472; x=1737679272; 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=DK4kqw2cTdbm+/2EKLQmXwDTDwPJyaiZPR0lZwbazzg=; b=ayCi1jvVg3FiGytPKsmcLE/UrvA0LeTpGenYvYXbbN4ixs/jBuZGLlFc7YymWff87t aRCeAPhTrTt98QMV73AzfHXzIXBUYkuHg3ehhuSGeqGbnkEO5+YyQx3FyoYKhHe8J44V BVDcxk66aEAfcnZihYi1DZYsFPPvokCRlTXVEfaUNBLH7pIQ9nbCcjq1gsu3hTcaeThg MLA4oh6OmYeMYfKLVNMEisoGL1Bo4EL78KRzOzMNWCymef4BDSkcTcaxD/1jC8afW5Mq fzuQgM1JQBigO8Lk/bsYlCWFa0rtMQhzYAj78KW6iWBBxuThL691N+ZsVhSflVfz8q/3 GJjA== X-Gm-Message-State: AOJu0YyQxUxb6quP9um1NcWw/cOkjQRxDlXhLDi614H5YfrDS2jJ7BlM kXuK7D49Zrxix2JzVr6PT7Avh0VmbtTgG9+CqH5zotzN2ncAnSPlYKa7w3rVOBM0U3rfQKPKTno 3AwGNbM73xulL81xRPXMaSAjdllC7S05WdjT0EhWzMEa1GpM9MgeUDYc= X-Google-Smtp-Source: AGHT+IE7FjQGD/apUHv/F3SlhFKxRp/STDdQiQi/rTt/ukzqIYoofEAWB3QE5+2PrhPWfbKpzylkFBbxmwW0gUq+qlzvP3LqdKTX Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:12ec:b0:3ce:afa6:93cf with SMTP id e9e14a558f8ab-3cf74495d71mr5521035ab.17.1737074472354; Thu, 16 Jan 2025 16:41:12 -0800 (PST) Date: Thu, 16 Jan 2025 16:41:12 -0800 In-Reply-To: <6763ae7b.050a0220.15da49.0007.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6789a728.050a0220.20d369.004a.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [fs?] KASAN: slab-use-after-free Read in debugfs_u32_get From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [fs?] KASAN: slab-use-after-free Read in debugfs_u32_get Author: lizhi.xu@windriver.com #syz test diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 3e0b61202f0c..b679b3bb3459 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -1650,7 +1650,6 @@ static void nsim_dev_reload_destroy(struct nsim_dev *nsim_dev) if (devlink_is_reload_failed(devlink)) return; - debugfs_remove(nsim_dev->take_snapshot); if (nsim_dev_get_vfs(nsim_dev)) { nsim_bus_dev_set_vfs(nsim_dev->nsim_bus_dev, 0); @@ -1665,6 +1664,7 @@ static void nsim_dev_reload_destroy(struct nsim_dev *nsim_dev) nsim_fib_destroy(devlink, nsim_dev->fib_data); nsim_dev_traps_exit(devlink); nsim_dev_dummy_region_exit(nsim_dev); + nsim_dev_debugfs_exit(nsim_dev); } void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev) @@ -1676,7 +1676,6 @@ void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev) nsim_dev_reload_destroy(nsim_dev); nsim_bpf_dev_exit(nsim_dev); - nsim_dev_debugfs_exit(nsim_dev); devl_params_unregister(devlink, nsim_devlink_params, ARRAY_SIZE(nsim_devlink_params)); devl_resources_unregister(devlink);