From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B1CA54204F for ; Fri, 7 Jun 2024 06:03:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717740201; cv=none; b=gjAIjLV08jUSg3SFddzzWpdwbUb8FpyFz/a4xqiIcE7rYlbltO8F7/SvITQGoS+BbfhYPZtmo15df40nLHbY4xUejGTAkU/eE/B4MEU/SfuTznqgbgsJ0JJDZD5tRwaaIGkAPxNJnSIRDol2+JEPqzHUlEGGegcw0AkjR7hJ8pE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717740201; c=relaxed/simple; bh=SFJmRzdq7tEFU8yOOe/q0W7DCeJ/QLfi2njszS/hpgc=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=U9ZwkQv1kQZ0MrW4sJfDSE1uNtBYILb/CFBxDRZoZqjMKce0kTIwUS/CAJI82Z3NV59T01TA8uz4xreHnuvw4iKug4MeJ3oNraObOFRKonPoAbALtn/SsTH6leHn3Nv0oRsI8mmIbbDX2PtkTiWSmsB7/CF+U3Wie1/+lubtZJk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.206 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f206.google.com with SMTP id e9e14a558f8ab-37497a1aff0so17428905ab.1 for ; Thu, 06 Jun 2024 23:03:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717740199; x=1718344999; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=vwDqcFGW6wzuDnM1PhkLbZaSGzwhVM71SbuWVC05qkA=; b=bM2W3TZJRCRVmA7W3v097hZWa47mKVv8kDCUfhmNApXdGfs8AjOdzo9kvmGhUlcqRZ Lg/sZPhzAr6tK9ohwdlwUUU77HT5iytUJ3BG5tHcca3C96EMGjLnCDsEYb+xlU/K/8op SsyZz0+Kco1pGxYfTnuEpwBNzOx+noOIxM5O5JVRCyTQfwR4ibBYfkYjgvihrpYdP2TN oT7/rnSHOfM1YcxP29UNFVqwUbTOJLWn4v/QqLQSJRozl6nq/hWD+BUtc6IgoZV4L2UX 6UK+mZ6Jfn2AmTTsi5sTjE2LjHVaaQ+kGn6Z2rJhE+jSFyAkcDbNiHcapcvLXWy4e8Om Mt5A== X-Forwarded-Encrypted: i=1; AJvYcCVKleQSxzc5MjCK7c5xKef+RmN9d1HN6/pHzDLIwtUf/3KLx4U0B87ZX6BMLjwwLW+zYrcJTOuDSb7TvvHaFRfK7XAMMo52VICxudS3 X-Gm-Message-State: AOJu0Yx+TABpKqwGgu26sEwUehFVUKT3a/n0++CI/7JLgcZXBNeZ9cc8 mRAxDVvyrneFzJo7g6C5TU3c98/ZA7YYCnSlSr+9qZnUnVxKbdCmsVhiTOUe8+dBonC08bkww8q jnQJGpoIE4Ht0C8o+LMKyV08aGfn2ecc1uc2BoQSJEowlP3ZpmFyd03A= X-Google-Smtp-Source: AGHT+IEOtIL4LLp1zVxVdE2Vtemw3M/sNeD+OGVocWHXXbciZMuWddAfnaoUTsA31kNct1LoMlZnj7ao3VWqC73FFjZ/WMCz/i0L Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1aae:b0:374:a840:e5cf with SMTP id e9e14a558f8ab-37580234159mr1018295ab.0.1717740198792; Thu, 06 Jun 2024 23:03:18 -0700 (PDT) Date: Thu, 06 Jun 2024 23:03:18 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005d9e59061a468ed3@google.com> Subject: [syzbot] [net?] INFO: task hung in __tun_chr_ioctl (6) From: syzbot To: davem@davemloft.net, edumazet@google.com, jasowang@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, willemdebruijn.kernel@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 71d7b52cc33b Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1259b316980000 kernel config: https://syzkaller.appspot.com/x/.config?x=399230c250e8119c dashboard link: https://syzkaller.appspot.com/bug?extid=26c7b4c3afe5450b3e15 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/910b86eac08b/disk-71d7b52c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a5a6ad2a9a6c/vmlinux-71d7b52c.xz kernel image: https://storage.googleapis.com/syzbot-assets/ad7485d12317/bzImage-71d7b52c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+26c7b4c3afe5450b3e15@syzkaller.appspotmail.com INFO: task syz-executor.3:5788 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-syzkaller-00064-g71d7b52cc33b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28496 pid:5788 tgid:5786 ppid:5116 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 __tun_chr_ioctl+0x4fc/0x4770 drivers/net/tun.c:3110 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f632567cf69 RSP: 002b:00007f63263a70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f63257b3f80 RCX: 00007f632567cf69 RDX: 00000000200000c0 RSI: 00000000400454ca RDI: 0000000000000003 RBP: 00007f63256da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f63257b3f80 R15: 00007ffc7df747b8 INFO: task syz-executor.3:5790 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-syzkaller-00064-g71d7b52cc33b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28480 pid:5790 tgid:5786 ppid:5116 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 devinet_ioctl+0x26e/0x1f10 net/ipv4/devinet.c:1101 inet_ioctl+0x3aa/0x3f0 net/ipv4/af_inet.c:1003 packet_ioctl+0xb3/0x280 net/packet/af_packet.c:4256 sock_do_ioctl+0x116/0x280 net/socket.c:1222 sock_ioctl+0x22e/0x6c0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f632567cf69 RSP: 002b:00007f63263860c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f63257b4050 RCX: 00007f632567cf69 RDX: 0000000020000180 RSI: 0000000000008914 RDI: 0000000000000004 RBP: 00007f63256da6fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f63257b4050 R15: 00007ffc7df747b8 INFO: task syz-executor.0:5798 blocked for more than 144 seconds. Not tainted 6.10.0-rc2-syzkaller-00064-g71d7b52cc33b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27280 pid:5798 tgid:5796 ppid:5258 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 nl80211_pre_doit+0xb4/0xb10 net/wireless/nl80211.c:16405 genl_family_rcv_msg_doit+0x1be/0x2f0 net/netlink/genetlink.c:1110 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2564 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xab5/0xc90 net/socket.c:2585 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2639 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup