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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 D6EC2C5517A for ; Wed, 11 Nov 2020 13:55:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E8DA207BB for ; Wed, 11 Nov 2020 13:55:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727231AbgKKNzl (ORCPT ); Wed, 11 Nov 2020 08:55:41 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:40879 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727182AbgKKNz2 (ORCPT ); Wed, 11 Nov 2020 08:55:28 -0500 Received: by mail-il1-f198.google.com with SMTP id g14so1371386ilr.7 for ; Wed, 11 Nov 2020 05:55:27 -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=24cYXYNpqELV3yHrpqBCzuW7AoE4Q0aW3UQfbH4tOOg=; b=kiSFQmUIXvejalGEIqXSG1xys61Mhd0yiLJHJtHN1TWL2LDzg1f8zEeH2axIBSpMgH Gfihs2Fx+yAvE14QErE3rJaa6XaRKZoV+2igYmyyTmDCSb/AP2+UKdNYx/osrcc4ABRD 89L4i5bR0PtWy2eYPp18byjWq53kOyZVofXDgNNqqdduWW9hkR/WEMC+ZKiDkPL30QVh EqOgi8TqO/hXN6KA5X8UTCWA0LdqYDk7zQO/LB1/j/0lPsD9gYU88peFo5Azd3FdST2u hFZ6oRmn0Ro1cSu55gAVTIcqgbkVXQqF1y7qyiTyzao3/a8/Tq4QvfqIDuD7XPoGWzAW n6Pg== X-Gm-Message-State: AOAM531rn3wowwlS4LPYG60rb1xeunXJP6zusKT6wCzR6tijo6wEnpLu k06a/jKEKUCxPNQGb9E73iViP3JPr19gFl1hcf8g0PyS08pp X-Google-Smtp-Source: ABdhPJwAdB2bAWZvspAdNZ/fuf2NRMR72hM/N3fzHeO3gFuynOQClIvU/2qVkYoxioFuy3QidkJZiPdUJPwCkOmlfM7QmgDynJEp MIME-Version: 1.0 X-Received: by 2002:a92:d9ca:: with SMTP id n10mr17712756ilq.21.1605102927173; Wed, 11 Nov 2020 05:55:27 -0800 (PST) Date: Wed, 11 Nov 2020 05:55:27 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cd6be705b3d525d5@google.com> Subject: memory leak in usb_set_configuration From: syzbot To: andriy.shevchenko@linux.intel.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mathias.nyman@linux.intel.com, stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 407ab579 Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16d84062500000 kernel config: https://syzkaller.appspot.com/x/.config?x=a3f13716fa0212fd dashboard link: https://syzkaller.appspot.com/bug?extid=641bd6ff9b25e6d3aad1 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=102c2094500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16a8dfa8500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+641bd6ff9b25e6d3aad1@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff88810ed7cc00 (size 1024): comm "kworker/0:3", pid 4907, jiffies 4294954595 (age 14.630s) hex dump (first 32 bytes): 48 92 b6 11 81 88 ff ff 48 92 b6 11 81 88 ff ff H.......H....... 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000acb2212d>] kmalloc include/linux/slab.h:552 [inline] [<00000000acb2212d>] kzalloc include/linux/slab.h:664 [inline] [<00000000acb2212d>] usb_set_configuration+0x18c/0xb90 drivers/usb/core/message.c:1987 [<00000000398ef244>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000c8516fd1>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000eb555eca>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<0000000082b68944>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<000000000485fb4d>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<00000000a0e84ad1>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<0000000017598cdd>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<00000000201e5839>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000ec5f56bf>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<0000000049b5ad41>] usb_new_device.cold+0x166/0x578 drivers/usb/core/hub.c:2554 [<0000000030bc00f0>] hub_port_connect drivers/usb/core/hub.c:5222 [inline] [<0000000030bc00f0>] hub_port_connect_change drivers/usb/core/hub.c:5362 [inline] [<0000000030bc00f0>] port_event drivers/usb/core/hub.c:5508 [inline] [<0000000030bc00f0>] hub_event+0x144a/0x20d0 drivers/usb/core/hub.c:5590 [<00000000e89e69ae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<0000000063d76c23>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000a311ec69>] kthread+0x178/0x1b0 kernel/kthread.c:292 [<00000000690c42fe>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 BUG: memory leak unreferenced object 0xffff888110d0ab40 (size 32): comm "kworker/0:3", pid 4907, jiffies 4294954595 (age 14.630s) hex dump (first 32 bytes): 31 2d 31 3a 30 2e 30 00 00 00 00 00 00 00 00 00 1-1:0.0......... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000faadb384>] kvasprintf+0x6c/0xf0 lib/kasprintf.c:25 [<00000000ae06ab4d>] kvasprintf_const+0x58/0x110 lib/kasprintf.c:49 [<0000000098542b5a>] kobject_set_name_vargs+0x3b/0xe0 lib/kobject.c:289 [<00000000d0bb751d>] dev_set_name+0x63/0x90 drivers/base/core.c:2722 [<00000000b7617caa>] usb_set_configuration+0x6be/0xb90 drivers/usb/core/message.c:2094 [<00000000398ef244>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000c8516fd1>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000eb555eca>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<0000000082b68944>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<000000000485fb4d>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<00000000a0e84ad1>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<0000000017598cdd>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<00000000201e5839>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000ec5f56bf>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<0000000049b5ad41>] usb_new_device.cold+0x166/0x578 drivers/usb/core/hub.c:2554 [<0000000030bc00f0>] hub_port_connect drivers/usb/core/hub.c:5222 [inline] [<0000000030bc00f0>] hub_port_connect_change drivers/usb/core/hub.c:5362 [inline] [<0000000030bc00f0>] port_event drivers/usb/core/hub.c:5508 [inline] [<0000000030bc00f0>] hub_event+0x144a/0x20d0 drivers/usb/core/hub.c:5590 BUG: memory leak unreferenced object 0xffff88811182b900 (size 256): comm "kworker/0:3", pid 4907, jiffies 4294954600 (age 14.580s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 b9 82 11 81 88 ff ff ................ 08 b9 82 11 81 88 ff ff 40 44 58 82 ff ff ff ff ........@DX..... backtrace: [<000000000b81baae>] kmalloc include/linux/slab.h:552 [inline] [<000000000b81baae>] kzalloc include/linux/slab.h:664 [inline] [<000000000b81baae>] device_private_init drivers/base/core.c:2778 [inline] [<000000000b81baae>] device_add+0x7e8/0xc30 drivers/base/core.c:2828 [<000000002061ca5e>] usb_set_configuration+0x9de/0xb90 drivers/usb/core/message.c:2159 [<00000000398ef244>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000c8516fd1>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000eb555eca>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<0000000082b68944>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<000000000485fb4d>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<00000000a0e84ad1>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<0000000017598cdd>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<00000000201e5839>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000ec5f56bf>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<0000000049b5ad41>] usb_new_device.cold+0x166/0x578 drivers/usb/core/hub.c:2554 [<0000000030bc00f0>] hub_port_connect drivers/usb/core/hub.c:5222 [inline] [<0000000030bc00f0>] hub_port_connect_change drivers/usb/core/hub.c:5362 [inline] [<0000000030bc00f0>] port_event drivers/usb/core/hub.c:5508 [inline] [<0000000030bc00f0>] hub_event+0x144a/0x20d0 drivers/usb/core/hub.c:5590 [<00000000e89e69ae>] process_one_work+0x27d/0x590 kernel/workqueue.c:2272 [<0000000063d76c23>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2418 [<00000000a311ec69>] kthread+0x178/0x1b0 kernel/kthread.c:292 --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches