From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f77.google.com (mail-io1-f77.google.com [209.85.166.77]) (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 CA273283159 for ; Wed, 27 Aug 2025 23:22:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756336957; cv=none; b=i7pl1XaSTClelyBtkCAMlcib2ejgFEyMqnpZBroIe1BOYeEFBXIxIV5yoNXeFIriq70Hzf4CNOtHNV+UU281JkqZ4MrylJL2/9YyrqKOXfj4ICpggHEshPzpg2bK2mGznVRfmt+HfkiOc1ruhAa8wD3rUc01IJ/tLJsU6ksbh5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756336957; c=relaxed/simple; bh=0GRIOvOeVhXcTpXjeCZTG4Wm6VLWPHRblsRlooK4Ayg=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=r7B1W1jzx7PiAM39sQ7wHUXRKJtK9upN7uy7P4dGBxQWX1ORBuby8s1p793Buo56Qo2h8BRDThVOMUO8K0SkUhe79OziaHFpVo+FOnHwJNVjuDl3QjxCIaTXh12vcSCYf2AtiqWZvy8IcjXWwrLowVBy89UyYFh+F/sw/LiDz+I= 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=209.85.166.77 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-io1-f77.google.com with SMTP id ca18e2360f4ac-886b58db928so46937539f.1 for ; Wed, 27 Aug 2025 16:22:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756336955; x=1756941755; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=ki+X7udoy2qkKDlMn7tVUFGA43nOQ+o8mdWuhpBpgeA=; b=sXIGW3Nc5tMV4enBpDjC3UzLeOuhH0pZmI82XUVADs8KhKVlsgePKMcJSr/W+w1Hsp jEQu/Sqv2NWD/EWJjPVIi+5mPHbFkLMXkXwBYJjilkTJnM1j6QXsgZF0zpPdjKZ2JWAw RB5wyfQaiTAD/xEjuhpPDl7kkhuatzoyoIxKIpFMm0OuKCOa8ABbxa4spYDq6ccrtkOf Z70keqQoHIQiTNtvV0xoKdMUTRp32IqjJste7R/pyYXEUkVbL6w5SVX9TJa0qdgN5B0b K0q9JtDtjZ5ZxBZPq8t3CynFIBZUX4daQ7mxp4nIh2Y6UwsfqD0KCdrPursLJlBB5rDE 8YGg== X-Forwarded-Encrypted: i=1; AJvYcCUDKQUsHHswl337oZAVbUp4pQ9irqesndIZOWseEL/PU0FWqDRTN7ueABN5UCsM9B8IkGznEJ+2sHlNvvU=@vger.kernel.org X-Gm-Message-State: AOJu0Ywsn09IilL7OLJLeT/OFFB19IzIofPIhAQTngcIk+jpGIFKSMRJ h9zXgq6Okk1mhY8owV/x9yRD4/eJ46zzr3egoqqwn6973kmRtr8YT7gZzTrF79OExd8eOsdN7rm tn2SMUf8BdZz5olCQTiRwIWsX48vLv2h1yzGm+GdO9NEo8vJASAgNOh7ohXo= X-Google-Smtp-Source: AGHT+IH3N1ARNwZGmUjEWCZQJ81oG91H3vhlVBbtDcF1nVYElY3E28RiYQ5MQlN4AKZM4aYUDzUYwQE5O+jjny0YFPioim6so6+G Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:2c11:b0:881:87ac:24a with SMTP id ca18e2360f4ac-886bd14dd6cmr2927042739f.7.1756336955004; Wed, 27 Aug 2025 16:22:35 -0700 (PDT) Date: Wed, 27 Aug 2025 16:22:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68af933a.a00a0220.2929dc.0007.GAE@google.com> Subject: [syzbot] [net?] [usb?] KMSAN: uninit-value in rtl8150_open From: syzbot To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, petkan@nucleusys.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: fab1beda7597 Merge tag 'devicetree-fixes-for-6.17-1' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17a9e462580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6ccfdce02093e91f dashboard link: https://syzkaller.appspot.com/bug?extid=b4d5d8faea6996fd55e3 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/db03ab9be061/disk-fab1beda.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/465314c75c15/vmlinux-fab1beda.xz kernel image: https://storage.googleapis.com/syzbot-assets/02e5480b1de2/bzImage-fab1beda.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b4d5d8faea6996fd55e3@syzkaller.appspotmail.com usb 1-1: device reset failed ===================================================== BUG: KMSAN: uninit-value in set_carrier drivers/net/usb/rtl8150.c:721 [inline] BUG: KMSAN: uninit-value in rtl8150_open+0x1131/0x1360 drivers/net/usb/rtl8150.c:758 set_carrier drivers/net/usb/rtl8150.c:721 [inline] rtl8150_open+0x1131/0x1360 drivers/net/usb/rtl8150.c:758 __dev_open+0x7e9/0xc60 net/core/dev.c:1682 __dev_change_flags+0x3a8/0x9f0 net/core/dev.c:9549 netif_change_flags+0x8d/0x1e0 net/core/dev.c:9612 dev_change_flags+0x18c/0x320 net/core/dev_api.c:68 devinet_ioctl+0x1186/0x2500 net/ipv4/devinet.c:1200 inet_ioctl+0x4c0/0x6f0 net/ipv4/af_inet.c:1001 sock_do_ioctl+0x9c/0x480 net/socket.c:1238 sock_ioctl+0x70b/0xd60 net/socket.c:1359 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0x23c/0x400 fs/ioctl.c:584 __x64_sys_ioctl+0x97/0xe0 fs/ioctl.c:584 x64_sys_call+0x1cbc/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable tmp created at: number+0x8a/0x2200 lib/vsprintf.c:469 vsnprintf+0xd21/0x1bd0 lib/vsprintf.c:2890 CPU: 1 UID: 0 PID: 5461 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 ===================================================== --- 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