From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 7AD6838FB9 for ; Mon, 31 Mar 2025 02:14:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743387269; cv=none; b=rP9k6o0/KrzSG2cmx61O8dWwswKuNAqGyvT2n29rLn8WugJfMifQmcFriH3qpUretn1NjjkfINggq+q7jYGUhJ2fyiMinGn7Cxkv+IAFBfnGU8S8xsTR10je0WSbGYfK0uGGUXXN5UgIc3UC/vRqgKkjUl8WtN23n7KpFjl+wZI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743387269; c=relaxed/simple; bh=otP5ppnT9Z1XPJMiBGLIWJxYif8WNzKhHlwtQdlMvUc=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=H7tPp4ZGaWxd6WmROLeT9lWNXBOV5Q9bmuHgAAmPsGhucx4bmOWL3ZcYXdTR6maYeqEfoh3cefs3Y4y/vd412pYmIpvB53u6TJNIueLWosQvLp9CsdPI607GoPCWU4INRp09y70UIujRFoykEx1iLAtV9rJhk6BDCYRaxcjgUnk= 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=209.85.166.207 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-f207.google.com with SMTP id e9e14a558f8ab-3d44dc8a9b4so39948645ab.3 for ; Sun, 30 Mar 2025 19:14:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743387266; x=1743992066; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=zn4wsqECmycelK2HB+BPPSdvs//fE/pmKUurDQYNNO4=; b=HAb1xc/RKAIFcj1vc+3KSypN0Fuo9s1BVNkkxFo/juu4OwpFe0tIExFDg6kAGThW5r cCDgzDX/RkbP/eZrGUOAdWcSAq9EiBvuHLJxqrmq6rbBW6B+ZSeZKU6bTjRSUf6DR1yr 2xqOVNJvlEwFPbko/XWrVQiMGGNDByi8yIPBhaYG2Q9jGoGeBGs199fZkNlmQZLrpgrG gjoEwpYnMEuClGE4ZKAPQGhX5mBkBucebTuZozent6Y3DG5xWekWSSNCSXNrsfLpvRIX 8jVMR9kzA/xthVLYYunoPDXZV9GRwY9WV454o7t97+wS62eAb75W/C9IdqljunXLwhRM BxJQ== X-Forwarded-Encrypted: i=1; AJvYcCWhMGfzbzOiBzNBgoC/+f3BV1gApBiOKnKq91MnDoVZnT7WWK+aQo1cTcMTLME+z4ect5KPUwZpQ6nt3os=@vger.kernel.org X-Gm-Message-State: AOJu0YzrxXPxOcuk2mBEHb5X+yY2rgpoHS3jlPNuolIZPDu0HHmTPM1V POx511BwMJiBC7nnRdMaorCvBeXs33qFoLLtuRfyr5sF1vBdi06fu57u04d4JQ6Y+fo2Ta3Q5be a3zkpr0ZEjfztUuF80mXDrmczZRNq0tST8SRnhljCEUvepgRmK9U6VDw= X-Google-Smtp-Source: AGHT+IHzaYoQ6A44D1gbKMagzp6/4TOHACf+Mx08YIPA7ACJMpaj92WyCyyf1pCWil+4DLIasr/vgutg399jYAaX6NfMvuhZXDIM Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1646:b0:3d3:fdcc:8fb8 with SMTP id e9e14a558f8ab-3d5e090cedfmr58623345ab.10.1743387266684; Sun, 30 Mar 2025 19:14:26 -0700 (PDT) Date: Sun, 30 Mar 2025 19:14:26 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67e9fa82.050a0220.1547ec.00e8.GAE@google.com> Subject: [syzbot] [input?] [usb?] UBSAN: shift-out-of-bounds in __kfifo_alloc From: syzbot To: bentiss@kernel.org, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f6e0150b2003 Merge tag 'mtd/for-6.15' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14ebabb0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=a15c3c5deef99cef dashboard link: https://syzkaller.appspot.com/bug?extid=d5204cbbdd921f1f7cad compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=146e4a4c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d1d804580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-f6e0150b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/416c28ebba43/vmlinux-f6e0150b.xz kernel image: https://storage.googleapis.com/syzbot-assets/df554d24e7cb/bzImage-f6e0150b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d5204cbbdd921f1f7cad@syzkaller.appspotmail.com usb 5-1: New USB device found, idVendor=056a, idProduct=00f8, bcdDevice= 0.00 usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 5-1: config 0 descriptor?? ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13 shift exponent 64 is too large for 64-bit type 'long unsigned int' CPU: 0 UID: 0 PID: 835 Comm: kworker/0:2 Not tainted 6.14.0-syzkaller-03565-gf6e0150b2003 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x27f/0x420 lib/ubsan.c:492 __roundup_pow_of_two include/linux/log2.h:57 [inline] __kfifo_alloc.cold+0x18/0x1d lib/kfifo.c:32 wacom_devm_kfifo_alloc drivers/hid/wacom_sys.c:1308 [inline] wacom_parse_and_register+0x28e/0x5d10 drivers/hid/wacom_sys.c:2368 wacom_probe+0xa1c/0xe10 drivers/hid/wacom_sys.c:2867 __hid_device_probe drivers/hid/hid-core.c:2717 [inline] hid_device_probe+0x354/0x710 drivers/hid/hid-core.c:2754 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23e/0xa90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958 bus_for_each_drv+0x156/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3666 hid_add_device+0x373/0xa60 drivers/hid/hid-core.c:2900 usbhid_probe+0xd38/0x13f0 drivers/hid/usbhid/hid-core.c:1432 usb_probe_interface+0x300/0x9c0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23e/0xa90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958 bus_for_each_drv+0x156/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3666 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23e/0xa90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958 bus_for_each_drv+0x156/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3666 usb_new_device+0xd07/0x1a20 drivers/usb/core/hub.c:2663 hub_port_connect drivers/usb/core/hub.c:5533 [inline] hub_port_connect_change drivers/usb/core/hub.c:5673 [inline] port_event drivers/usb/core/hub.c:5833 [inline] hub_event+0x2eb7/0x4fa0 drivers/usb/core/hub.c:5915 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c1/0xef0 kernel/workqueue.c:3400 kthread+0x3a4/0x760 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---[ end trace ]--- --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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