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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA2A3C7619A for ; Fri, 24 Mar 2023 00:52:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229847AbjCXAwt (ORCPT ); Thu, 23 Mar 2023 20:52:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230213AbjCXAwo (ORCPT ); Thu, 23 Mar 2023 20:52:44 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC1E62B2A5 for ; Thu, 23 Mar 2023 17:52:41 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id r25-20020a056602235900b0074d472df653so270839iot.2 for ; Thu, 23 Mar 2023 17:52:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679619161; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/hAShd89GEZikhKuBQycIJOs6lEcmAdTPXt/QcfCjj4=; b=ertnXJT6CbnGfI1Wnf4KWE3SWkVJ5j7diHSZ1C5l5zpk+IsEPBWDuELmPIvFPo41MI 5Ez1tUby7v4ZVPEHRDgCxoGuu98UYKFS/7i2F423edbPBT/rVujQxRZlwxqEUPjnQ9iw qQ3IrqQAtNEzehaVxYHcRkQlvKRe5zDo/h7WlQ/V71WBNdZpGhxRvWCgOlsTnnr7q6Yx o5j2cytlEw6lSMvNm1iM7NwbrrJhglFuOJiE3g4LZ7uMjgdiK/LflX1JjhBxQNfAx6m4 UQSN4aPMBHhYO4SNeyD1Junw9K+opzQvdhgZdgyncPOjegMcyPmH3KsrhhqXojlwDd+8 mMFA== X-Gm-Message-State: AO0yUKVUBc14lK72acDEosl49nLQ6Dzc5Lb0HXqCTRn+PU8Hdf6HFgM2 ugIRnIe+jNbPuA4MH+tgZMFDX6CcY8xJAq3nCl8VmAxhDCX4 X-Google-Smtp-Source: AK7set9JoYvBiZIzf069gVgf2T3f5ztOyf0ealGZ04ZbUzxgosLYIW3AWoXihW5BiWGofNOFxd0YFakzzgrumIVpEFwOp320Kt+2 MIME-Version: 1.0 X-Received: by 2002:a6b:500e:0:b0:751:96ce:ed7d with SMTP id e14-20020a6b500e000000b0075196ceed7dmr4426762iob.1.1679619161175; Thu, 23 Mar 2023 17:52:41 -0700 (PDT) Date: Thu, 23 Mar 2023 17:52:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000075bebb05f79acfde@google.com> Subject: [syzbot] [net?] [virt?] [io-uring?] [kvm?] BUG: soft lockup in vsock_connect From: syzbot To: axboe@kernel.dk, davem@davemloft.net, edumazet@google.com, io-uring@vger.kernel.org, kuba@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, sgarzare@redhat.com, stefanha@redhat.com, syzkaller-bugs@googlegroups.com, virtualization@lists.linux-foundation.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: fe15c26ee26e Linux 6.3-rc1 git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1577c97ec80000 kernel config: https://syzkaller.appspot.com/x/.config?x=7573cbcd881a88c9 dashboard link: https://syzkaller.appspot.com/bug?extid=0bc015ebddc291a97116 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1077c996c80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e38929c80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/89d41abd07bd/disk-fe15c26e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fa75f5030ade/vmlinux-fe15c26e.xz kernel image: https://storage.googleapis.com/syzbot-assets/590d0f5903ee/Image-fe15c26e.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0bc015ebddc291a97116@syzkaller.appspotmail.com watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [syz-executor244:6747] Modules linked in: irq event stamp: 6033 hardirqs last enabled at (6032): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (6032): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (6033): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (6033): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (616): [] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (616): [] lock_sock_nested+0xe8/0x138 net/core/sock.c:3480 softirqs last disabled at (618): [] spin_lock_bh include/linux/spinlock.h:355 [inline] softirqs last disabled at (618): [] virtio_transport_purge_skbs+0x11c/0x500 net/vmw_vsock/virtio_transport_common.c:1372 CPU: 0 PID: 6747 Comm: syz-executor244 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __sanitizer_cov_trace_pc+0xc/0x8c kernel/kcov.c:203 lr : virtio_transport_purge_skbs+0x19c/0x500 net/vmw_vsock/virtio_transport_common.c:1374 sp : ffff80001e787890 x29: ffff80001e7879e0 x28: 1ffff00003cf0f2a x27: ffff80001a487a60 x26: ffff80001e787950 x25: ffff0000ce2d3b80 x24: ffff80001a487a78 x23: 1ffff00003490f4c x22: ffff80001a29c1a8 x21: dfff800000000000 x20: ffff80001a487a60 x19: ffff80001e787940 x18: 1fffe000368951b6 x17: ffff800015cdd000 x16: ffff8000085110b0 x15: 0000000000000000 x14: 1ffff00002b9c0b2 x13: dfff800000000000 x12: ffff700003cf0efc x11: ff808000122dbee8 x10: 0000000000000000 x9 : ffff8000122dbee8 x8 : ffff0000ce511b40 x7 : ffff8000122dbcfc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000832d758 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: get_current arch/arm64/include/asm/current.h:19 [inline] __sanitizer_cov_trace_pc+0xc/0x8c kernel/kcov.c:206 vsock_loopback_cancel_pkt+0x28/0x3c net/vmw_vsock/vsock_loopback.c:48 vsock_transport_cancel_pkt net/vmw_vsock/af_vsock.c:1284 [inline] vsock_connect+0x6b8/0xaec net/vmw_vsock/af_vsock.c:1426 __sys_connect_file net/socket.c:2004 [inline] __sys_connect+0x268/0x290 net/socket.c:2021 __do_sys_connect net/socket.c:2031 [inline] __se_sys_connect net/socket.c:2028 [inline] __arm64_sys_connect+0x7c/0x94 net/socket.c:2028 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 --- 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