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=-5.4 required=3.0 tests=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 6998DC76191 for ; Thu, 25 Jul 2019 05:04:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 42F2722BF3 for ; Thu, 25 Jul 2019 05:04:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390360AbfGYFEH (ORCPT ); Thu, 25 Jul 2019 01:04:07 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:40251 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390312AbfGYFEG (ORCPT ); Thu, 25 Jul 2019 01:04:06 -0400 Received: by mail-io1-f69.google.com with SMTP id v11so53576511iop.7 for ; Wed, 24 Jul 2019 22:04:06 -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:in-reply-to:message-id:subject :from:to; bh=L3X65vZ3rUayuRUS9zN2GDw/XxLqoFgPS3n++Iwna6A=; b=iSY8nr7IajD02C3DC3h+1UB31wyf7z0PAC6w1IgO3uZYEeSXHzsXyBhhZQ365QI8Cy rscY7lS2fCQcsXjJRKPuqSh9cI7MUIDfSycFit/PY4JqiEqkLKP88ou9vAvPjVgA/xRF snNmpXopJGKoEZxU/PAd7Q6Tc6kZQntxwuQgeiXDbHyB8YwwRUZ+2X+lMtRyAtQOxT5j x+hyt7+N0s2F+VHw/VjuQamCuF1Twyz7xc3P/R4/nKww099lmz9298q4rDP7LKWzjdSs tFrVYVF468Pj+GNCHmlP8aCSEIJaJS4F9CyH1WJ0b1rrlWaKE9bGyKtgNfjStX75Dj8D Hi2A== X-Gm-Message-State: APjAAAUde2b1sdfybH9Tu7I4h64jJj4yAv/6M6y04kVk/PRsyF4RuSba cxMcGUTpAwHsueSu7PeYEtpczX+IE6gONrzub+Z1ahQpuizR X-Google-Smtp-Source: APXvYqzY2yjxTZN7foDFPwt5tMSC/DMH88SCMokplXfOZycOYHM8wdRoZvOlXN32Jc9l/IU3X+nVJ88t3J/1E7NAJoWMPDLtLebS MIME-Version: 1.0 X-Received: by 2002:a6b:b985:: with SMTP id j127mr27063494iof.186.1564031045859; Wed, 24 Jul 2019 22:04:05 -0700 (PDT) Date: Wed, 24 Jul 2019 22:04:05 -0700 In-Reply-To: <0000000000003acc06058e6d6b70@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e80c0e058e7a5a31@google.com> Subject: Re: general protection fault in __pm_runtime_resume From: syzbot To: andreyknvl@google.com, gregkh@linuxfoundation.org, len.brown@intel.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, pavel@ucw.cz, rjw@rjwysocki.net, syzkaller-bugs@googlegroups.com 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 syzbot has found a reproducer for the following crash on: HEAD commit: 6a3599ce usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=108edb68600000 kernel config: https://syzkaller.appspot.com/x/.config?x=700ca426ab83faae dashboard link: https://syzkaller.appspot.com/bug?extid=3cbe5cd105d2ad56a1df compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13f0b4c8600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172d8758600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+3cbe5cd105d2ad56a1df@syzkaller.appspotmail.com 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 CPU: 0 PID: 1740 Comm: syz-executor618 Not tainted 5.2.0-rc6+ #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__pm_runtime_resume+0x49/0x180 drivers/base/power/runtime.c:1069 Code: ed 74 d5 fe 45 85 ed 0f 85 9a 00 00 00 e8 6f 73 d5 fe 48 8d bd c1 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 fe 00 00 00 RSP: 0018:ffff8881cf5878e0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff82676833 RDX: 000000021d463be5 RSI: ffffffff82676841 RDI: 00000010ea31df2b RBP: 00000010ea31dc6a R08: ffff8881d1b7e000 R09: fffffbfff0e84c25 R10: ffff8881cf587940 R11: ffffffff87426127 R12: 0000000000000004 R13: 0000000000000000 R14: ffff8881cfd7a500 R15: ffffffff897f9040 FS: 0000555555808880(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000043f760 CR3: 00000001d0f29000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pm_runtime_get_sync include/linux/pm_runtime.h:226 [inline] usb_autopm_get_interface+0x1b/0x50 drivers/usb/core/driver.c:1707 usbhid_power+0x7c/0xe0 drivers/hid/usbhid/hid-core.c:1234 hid_hw_power include/linux/hid.h:1038 [inline] hidraw_open+0x20d/0x740 drivers/hid/hidraw.c:282 chrdev_open+0x219/0x5c0 fs/char_dev.c:413 do_dentry_open+0x497/0x1040 fs/open.c:778 do_last fs/namei.c:3416 [inline] path_openat+0x1430/0x3ff0 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3563 do_sys_open+0x3c0/0x580 fs/open.c:1070 do_syscall_64+0xb7/0x560 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x401ad0 Code: 01 f0 ff ff 0f 83 c0 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d fd 5b 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0b 00 00 c3 48 83 ec 08 e8 fa 00 00 00 RSP: 002b:00007ffed8d15738 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000401ad0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffed8d15740 RBP: 6666666666666667 R08: 000000000000000f R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402af0 R13: 0000000000402b80 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 60987a9feed42828 ]--- RIP: 0010:__pm_runtime_resume+0x49/0x180 drivers/base/power/runtime.c:1069 Code: ed 74 d5 fe 45 85 ed 0f 85 9a 00 00 00 e8 6f 73 d5 fe 48 8d bd c1 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 fe 00 00 00 RSP: 0018:ffff8881cf5878e0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000020 RCX: ffffffff82676833 RDX: 000000021d463be5 RSI: ffffffff82676841 RDI: 00000010ea31df2b RBP: 00000010ea31dc6a R08: ffff8881d1b7e000 R09: fffffbfff0e84c25 R10: ffff8881cf587940 R11: ffffffff87426127 R12: 0000000000000004 R13: 0000000000000000 R14: ffff8881cfd7a500 R15: ffffffff897f9040 FS: 0000555555808880(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000043f760 CR3: 00000001d0f29000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400