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 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 B4B25C3A5A0 for ; Mon, 19 Aug 2019 16:18:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9476222CE9 for ; Mon, 19 Aug 2019 16:18:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727979AbfHSQSH (ORCPT ); Mon, 19 Aug 2019 12:18:07 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:36658 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727356AbfHSQSH (ORCPT ); Mon, 19 Aug 2019 12:18:07 -0400 Received: by mail-io1-f69.google.com with SMTP id i6so4597900ioi.3 for ; Mon, 19 Aug 2019 09:18:06 -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:message-id:subject:from:to; bh=bDb1wfY3zWvAGXzcuZaY/Kj0+wNOxVk4VYKW8s74KEk=; b=mjn0Qq2lBkDBlpsJuJQWodgXsBF3kMeMyNbpzmR71DDV16cIh9D39g7GOSpFWNtWua 1utuUpYmnNenglyGkE4HqEfmLt3tizk6JIhNYYDnylU0ily4vEGtAvUiC1NmiYG5aVUc TKhr91SBsAg/Yu9kNZ8a4hDtOe8eSfypsMbK2Lhd3skinzAM7XGLh0x5bbFZdvCzw8yC MfeYQl8SKcOXhWRiYohq2OHU7DSRVfq28txuzhvNNSegg7PISBZOVUVKt2ZIWQZRlV59 DSR3uuO/TGwS91EaDJT3iGMElsPHKe8HHsUMZ8CnZCtXEztCjkNLdZUq2MmsjCO0tbM+ fLDQ== X-Gm-Message-State: APjAAAXlfwoCwFIHaVmvk+S99ZykMjNSxrTFm9PjIVI4HtXZUxZ9EC/W FJ6nqLLTaf5fM3z87hHbk3OXP2B0mJH5++tHuUprt+zjuCk3 X-Google-Smtp-Source: APXvYqzQj2RQ7OM8AQSaL8IfqfJuy3N6qb534Q6yVKw4MU27bjAPb+RhGwddDBGiSj0bV8M/OGhcHLjBfy1Bde/q7SYIMYpcjN1s MIME-Version: 1.0 X-Received: by 2002:a5e:924d:: with SMTP id z13mr1982147iop.247.1566231486402; Mon, 19 Aug 2019 09:18:06 -0700 (PDT) Date: Mon, 19 Aug 2019 09:18:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000621bc305907aaf02@google.com> Subject: WARNING in kmem_cache_alloc_trace From: syzbot To: andreyknvl@google.com, balbi@kernel.org, chunfeng.yun@mediatek.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: d0847550 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=16947fce600000 kernel config: https://syzkaller.appspot.com/x/.config?x=dbc9c80cc095da19 dashboard link: https://syzkaller.appspot.com/bug?extid=0e7b6b6001ca8ed655f6 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1141c5ba600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ed91d2600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+0e7b6b6001ca8ed655f6@syzkaller.appspotmail.com ------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=1 set at [<000000000453b57c>] prepare_to_wait+0xb1/0x2b0 kernel/sched/wait.c:230 WARNING: CPU: 0 PID: 1720 at kernel/sched/core.c:6551 __might_sleep+0x135/0x190 kernel/sched/core.c:6551 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 1720 Comm: syz-executor552 Not tainted 5.3.0-rc4+ #26 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x2a3/0x6da kernel/panic.c:219 __warn.cold+0x20/0x4a kernel/panic.c:576 report_bug+0x262/0x2a0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:__might_sleep+0x135/0x190 kernel/sched/core.c:6551 Code: 65 48 8b 1c 25 00 ef 01 00 48 8d 7b 10 48 89 fe 48 c1 ee 03 80 3c 06 00 75 2b 48 8b 73 10 48 c7 c7 e0 55 c6 85 e8 30 21 f6 ff <0f> 0b e9 46 ff ff ff e8 ef ee 46 00 e9 29 ff ff ff e8 e5 ee 46 00 RSP: 0018:ffff8881c7df7a30 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8881d4a49800 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81288cfd RDI: ffffed1038fbef38 RBP: ffffffff86a6a5d1 R08: ffff8881d4a49800 R09: fffffbfff11ad3a1 R10: fffffbfff11ad3a0 R11: ffffffff88d69d07 R12: 00000000000001f5 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000cc0 slab_pre_alloc_hook mm/slab.h:501 [inline] slab_alloc_node mm/slub.c:2690 [inline] slab_alloc mm/slub.c:2778 [inline] kmem_cache_alloc_trace+0x233/0x2f0 mm/slub.c:2795 kmalloc include/linux/slab.h:552 [inline] dummy_urb_enqueue+0x7c/0x890 drivers/usb/gadget/udc/dummy_hcd.c:1249 usb_hcd_submit_urb+0x2aa/0x1ee0 drivers/usb/core/hcd.c:1555 usb_submit_urb+0x6e5/0x13b0 drivers/usb/core/urb.c:569 yurex_write+0x3b2/0x710 drivers/usb/misc/yurex.c:491 __vfs_write+0x76/0x100 fs/read_write.c:494 vfs_write+0x262/0x5c0 fs/read_write.c:558 ksys_write+0x127/0x250 fs/read_write.c:611 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x440749 Code: e8 bc af 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffccb32e308 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440749 RDX: 000000000000008d RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00000000006cb018 R08: 000000000000000f R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401fd0 R13: 0000000000402060 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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