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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 78E9CC433E0 for ; Thu, 4 Mar 2021 08:22:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46EB664F09 for ; Thu, 4 Mar 2021 08:22:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236553AbhCDIVT (ORCPT ); Thu, 4 Mar 2021 03:21:19 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:36094 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231874AbhCDIVC (ORCPT ); Thu, 4 Mar 2021 03:21:02 -0500 Received: by mail-il1-f199.google.com with SMTP id s13so19886862ilp.3 for ; Thu, 04 Mar 2021 00:20:46 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=/kQ8LB1u3Wuf8KE19cFcLpe+iyreLR8SuYEl8EMB9QU=; b=nnxeON4XQas/gLWOZvuPHJ9fXsNxyMQk+HVVbLzqL3tiyY3qOjf57USqu35dayRsOd kDGNfJlWPxlRCU19UKxJKaxdhNOH30DzSDBiZnhvFiYF4nYfxsIQg280ETR81lMF3YW+ RPY9xwZIeB08lpAdEQ2k6/64NoGQYMc2O3/+esyLv66I0g7fxxFPKjZ3cz1AyKqa31sI tjIarXle++Zkomf1BPsEm9H0sEOl4IK+zTVslkNopvVLp9VWimqc5FoKrwfetCnx3S7r +wOxrEfbyCbuSS0KvZPbZvhoDJsJusSKrElN3H4gRXOraAwwkhQxCcf5srw2VRRbtbgM 4Vmw== X-Gm-Message-State: AOAM531GaMbrkNatMsifkuYrszucsdKWryRSoSD2+1bgclQgb4Ef2GXZ ytCnLKvhLqveolzvjJTzd6fMBMPhfap8dR517JCjmWxhu9uY X-Google-Smtp-Source: ABdhPJxaSqKef37VbLKd+0hOjeBhQ+hnlgKUZ+7qnXPmORBbCQdWwO0gd00GYYb6lIuXmKis2nlyjYPd6cTngZjuWRyhU3QyxGxO MIME-Version: 1.0 X-Received: by 2002:a02:9042:: with SMTP id y2mr3044690jaf.94.1614846021521; Thu, 04 Mar 2021 00:20:21 -0800 (PST) Date: Thu, 04 Mar 2021 00:20:21 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007ad39e05bcb1a38d@google.com> Subject: WARNING in firmware_fallback_sysfs From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@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 found the following issue on: HEAD commit: 5695e516 Merge tag 'io_uring-worker.v3-2021-02-25' of git:.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16f34e46d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=90173e86f0624adc dashboard link: https://syzkaller.appspot.com/bug?extid=95f2e2439b97575ec3c0 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+95f2e2439b97575ec3c0@syzkaller.appspotmail.com ------------[ cut here ]------------ sysfs group 'power' not found for kobject 'ueagle-atm!eagleI.fw' WARNING: CPU: 1 PID: 32 at fs/sysfs/group.c:279 sysfs_remove_group+0x94/0xa0 fs/sysfs/group.c:279 Modules linked in: CPU: 1 PID: 32 Comm: kworker/1:1 Not tainted 5.11.0-syzkaller-11646-g5695e5161974 #0 Hardware name: linux,dummy-virt (DT) Workqueue: events request_firmware_work_func pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--) pc : sysfs_remove_group+0x94/0xa0 fs/sysfs/group.c:279 lr : sysfs_remove_group+0x94/0xa0 fs/sysfs/group.c:279 sp : ffff800013e83bb0 x29: ffff800013e83bb0 x28: ffff800013a9de40 x27: f5ff00000dff3688 x26: f5ff00000dff3620 x25: f9ff00000b7e40a0 x24: faff00000a690b00 x23: f9ff00000b7e40a0 x22: 0000000000000000 x21: fdff00000de85808 x20: ffff8000124a9818 x19: 0000000000000000 x18: 00000000fffffffd x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000020 x14: ffffffffffffffff x13: 0000000000000e0b x12: ffff800013e83860 x11: ffff800013a0b548 x10: 00000000ffffe000 x9 : ffff800013a0b548 x8 : ffff80001395b548 x7 : ffff800013a0b548 x6 : 0000000000000000 x5 : ffff00007fbd7948 x4 : 0000000000015ff5 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5ff00000412eac0 Call trace: sysfs_remove_group+0x94/0xa0 fs/sysfs/group.c:279 dpm_sysfs_remove+0x60/0x70 drivers/base/power/sysfs.c:837 device_del+0xa4/0x384 drivers/base/core.c:3398 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:543 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:581 [inline] firmware_fallback_sysfs+0x35c/0x460 drivers/base/firmware_loader/fallback.c:657 _request_firmware+0x4c8/0x6d0 drivers/base/firmware_loader/main.c:831 request_firmware_work_func+0x40/0xa0 drivers/base/firmware_loader/main.c:1077 process_one_work+0x1d8/0x364 kernel/workqueue.c:2275 worker_thread+0x70/0x434 kernel/workqueue.c:2421 kthread+0x174/0x180 kernel/kthread.c:292 ret_from_fork+0x10/0x34 arch/arm64/kernel/entry.S:958 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.