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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS,URIBL_BLOCKED autolearn=ham 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 32B61C10F0E for ; Thu, 18 Apr 2019 12:06:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0C5B021850 for ; Thu, 18 Apr 2019 12:06:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388925AbfDRMGF (ORCPT ); Thu, 18 Apr 2019 08:06:05 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:47222 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388344AbfDRMGF (ORCPT ); Thu, 18 Apr 2019 08:06:05 -0400 Received: by mail-io1-f69.google.com with SMTP id z7so351453iom.14 for ; Thu, 18 Apr 2019 05:06:04 -0700 (PDT) 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=pHHuI0Fl17MZy+KxmjhlNEhzsGLmuNye/r1aZZrWAEY=; b=ct0AKJy1ZLXyAPP5PoiShq6nHXCNVtpZ1yFASCsUT5RC/MnqUwdb7rAsmOVfLC/aOM AkgtbWBLUuho4y6qUeGCDz390/J1boykcBn1u+fij2O3LlErxoVnvuyoQw6VNP4o1Dkd UXquQTwNzuhKJ3SG9+LFdGjvSJq2yVGhMsI1tdSpxcGBXsKC+LEAZ5B+7pkfmmhcnzg5 zGzE6o3GufRwMOlj4qAA7Z3VWYTzge98viWTZkIaGyOazzM5Kjugw15+qII58VAurHRH yud2172SCR0+l+tn4QhuXQmW7/kXG5CT7Lo+okOTX6099EPApea6MrgfJ0LlhUnv9rjq 8+zw== X-Gm-Message-State: APjAAAXk/e5y+ZaxFis4hW2e7ctvSIT2AkKuTSGIbQBsgtZeCzsGyLJo cyRSyQyt0gzjQci12vPyOWpLIgZ7LZwnTOfEi84Ulu8bRT8G X-Google-Smtp-Source: APXvYqxLo5lwcEJvl3VlKaguDqhorqYSWEpsTjrRwvvlzF3lGBdcMLdq4Mh62JRphoJChl7FgOjxKeN+76ujAQ00yyiyEHXnPvnj MIME-Version: 1.0 X-Received: by 2002:a02:5144:: with SMTP id s65mr8175189jaa.27.1555589164269; Thu, 18 Apr 2019 05:06:04 -0700 (PDT) Date: Thu, 18 Apr 2019 05:06:04 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000008d89900586ccd37b@google.com> Subject: general protection fault in smsusb_init_device From: syzbot To: andreyknvl@google.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-usb@vger.kernel.org, mchehab@kernel.org, syzkaller-bugs@googlegroups.com, wen.yang99@zte.com.cn Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: d34f9519 usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan/tree/usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=128ec3fd200000 kernel config: https://syzkaller.appspot.com/x/.config?x=c73d1bb5aeaeae20 dashboard link: https://syzkaller.appspot.com/bug?extid=53f029db71c19a47325a compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16138e67200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=128dddbf200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+53f029db71c19a47325a@syzkaller.appspotmail.com usb 1-1: config 0 descriptor?? usb 1-1: string descriptor 0 read error: -71 smsusb:smsusb_probe: board id=18, interface number 0 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN PTI CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.1.0-rc5-319617-gd34f951 #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:smsusb_init_device+0x366/0x937 drivers/media/usb/siano/smsusb.c:429 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 24 1e 66 f7 4d 8b b6 f0 04 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7e 04 48 89 fa 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 ff c0 38 d0 7c 09 84 d2 74 05 e8 b1 1d RSP: 0018:ffff8880a86570d0 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff88809a81b300 RCX: ffffffff8a42b5b3 RDX: 0000000000000000 RSI: ffffffff8a42b6a3 RDI: 0000000000000004 RBP: ffff88808ca70000 R08: ffff8880a8503100 R09: ffff8880a8657130 R10: ffffed10150cae34 R11: ffff8880a86571a7 R12: ffff88809a81be54 R13: ffff88809a81be5c R14: 0000000000000000 R15: ffff88808ca70000 FS: 0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1ad259d000 CR3: 000000009a3aa000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smsusb_probe+0xd64/0xe08 drivers/media/usb/siano/smsusb.c:570 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x1398/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 6175778b99b10882 ]--- RIP: 0010:smsusb_init_device+0x366/0x937 drivers/media/usb/siano/smsusb.c:429 Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 24 1e 66 f7 4d 8b b6 f0 04 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7e 04 48 89 fa 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 ff c0 38 d0 7c 09 84 d2 74 05 e8 b1 1d RSP: 0018:ffff8880a86570d0 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff88809a81b300 RCX: ffffffff8a42b5b3 RDX: 0000000000000000 RSI: ffffffff8a42b6a3 RDI: 0000000000000004 RBP: ffff88808ca70000 R08: ffff8880a8503100 R09: ffff8880a8657130 R10: ffffed10150cae34 R11: ffff8880a86571a7 R12: ffff88809a81be54 R13: ffff88809a81be5c R14: 0000000000000000 R15: ffff88808ca70000 FS: 0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1ad259d000 CR3: 000000009a3aa000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches