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=-9.0 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=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 60CA2C433DF for ; Mon, 10 Aug 2020 11:36:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 44C012070B for ; Mon, 10 Aug 2020 11:36:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726415AbgHJLg1 (ORCPT ); Mon, 10 Aug 2020 07:36:27 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:43837 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726330AbgHJLg0 (ORCPT ); Mon, 10 Aug 2020 07:36:26 -0400 Received: by mail-il1-f197.google.com with SMTP id 2so7540659ill.10 for ; Mon, 10 Aug 2020 04:36:25 -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=TIxOf1Tf6BsOdnD/hs/2ERCEHWfwJ12vftxSvMX9nNo=; b=hSawG9Po1/QtS/ZeS5hHMwOhaU4ZvUikTlX14uKDIg3e4H+xcHpFLca/JfgY9Px3Ma TuOWm2MOp1Utr68yL1pD9ajZIx9pPd51CKYQK3+FgSyTaUr2fZ6J0yRrC2Q2QnVECxDu k7lhOwQThIySJ/PY/rLwHWV413JKH/mRNk1s9pY5Yk/LQD/uy/GwTjYdnUnZTfE/oPEl gp0hSp2VnVX1GjKoZHFQNBtFrL1JbyqbiBiVjVHfuBTHs4KyANPeJsq2533IUONlSK5X gtCjiqHXbosLmpsQZLRY6jX8EMNs0ZUz6NGD85FaSl8f3+h34rxWv9cRfMYGyw/ZSWca eulA== X-Gm-Message-State: AOAM531A6lfFuVG/shlJzpeCwogcb/VAWd8ycVyWobWIGhoMr2jfFV16 e7N+4LXBeorbPU9ng26CL9qv9I9WZDPyqzcR9eEuX04k2qHx X-Google-Smtp-Source: ABdhPJzKsuv+jSFxCNAg+dPQCFRhFehVFF1ufCqQZ5+mFzkf/2ms76No9uqdMJ54t7ZFfpR2SuIbcL6Su5JC+mISTp49KobtgLw8 MIME-Version: 1.0 X-Received: by 2002:a92:98c8:: with SMTP id a69mr2396270ill.0.1597059385300; Mon, 10 Aug 2020 04:36:25 -0700 (PDT) Date: Mon, 10 Aug 2020 04:36:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000589ccd05ac845d6e@google.com> Subject: WARNING in slab_pre_alloc_hook From: syzbot To: andreyknvl@gmail.com, andreyknvl@google.com, balbi@kernel.org, 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" Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 449dc8c9 Merge tag 'for-v5.9' of git://git.kernel.org/pub/.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=16581652900000 kernel config: https://syzkaller.appspot.com/x/.config?x=6ef84fa8ee48e528 dashboard link: https://syzkaller.appspot.com/bug?extid=c2c3302f9c601a4b1be2 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e8de34900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1244eb62900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c2c3302f9c601a4b1be2@syzkaller.appspotmail.com ------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=1 set at [<00000000370c7c68>] prepare_to_wait+0xb1/0x2a0 kernel/sched/wait.c:247 WARNING: CPU: 1 PID: 340 at kernel/sched/core.c:7253 __might_sleep+0x135/0x190 kernel/sched/core.c:7253 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 340 Comm: syz-executor677 Not tainted 5.8.0-syzkaller #0 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+0xf6/0x16e lib/dump_stack.c:118 panic+0x2aa/0x6e1 kernel/panic.c:231 __warn.cold+0x20/0x50 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x41/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:__might_sleep+0x135/0x190 kernel/sched/core.c:7253 Code: 65 48 8b 1c 25 40 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 9e 06 86 e8 ed 12 f6 ff <0f> 0b e9 46 ff ff ff e8 1f b2 4b 00 e9 29 ff ff ff e8 15 b2 4b 00 RSP: 0018:ffff8881cdb77a28 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8881c6458000 RCX: 0000000000000000 RDX: ffff8881c6458000 RSI: ffffffff8129ec93 RDI: ffffed1039b6ef37 RBP: ffffffff86fdade2 R08: 0000000000000001 R09: ffff8881db32f54f R10: 0000000000000000 R11: 0000000030343354 R12: 00000000000001f2 R13: 0000000000000000 R14: 0000000000000068 R15: ffffffff83c1b1aa slab_pre_alloc_hook.constprop.0+0xea/0x200 mm/slab.h:498 slab_alloc_node mm/slub.c:2816 [inline] slab_alloc mm/slub.c:2900 [inline] kmem_cache_alloc_trace+0x46/0x220 mm/slub.c:2917 kmalloc include/linux/slab.h:554 [inline] dummy_urb_enqueue+0x7a/0x880 drivers/usb/gadget/udc/dummy_hcd.c:1251 usb_hcd_submit_urb+0x2b2/0x22d0 drivers/usb/core/hcd.c:1547 usb_submit_urb+0xb4e/0x13e0 drivers/usb/core/urb.c:570 yurex_write+0x3ea/0x820 drivers/usb/misc/yurex.c:495 vfs_write+0x2b0/0x730 fs/read_write.c:576 ksys_write+0x12d/0x250 fs/read_write.c:631 do_syscall_64+0x2d/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x444809 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 9b d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffc4c2b1358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444809 RDX: 00000000000000cb RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00000000006cf018 R08: 000000000000000f R09: 00000000004002e0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402430 R13: 00000000004024c0 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This report is generated by a bot. 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