From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 AC6AC24167B for ; Wed, 16 Jul 2025 14:50:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752677407; cv=none; b=YCZjAt9Vc6x0LxLFWPwbYJe6een0HK/zuPAltXKP+Gpz9oHGa5D2eb7CC3nYuJLkgR+ffAqRzuuaQNdJ9pK/e+2pgvzDFNgkrNEyDG9jD6NAqrOVBdbUH3LIEuYihTXEhWp07+HR1b1F6tMJZ0Ei7mpR9LhTE2DYizH/WnVKbJc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752677407; c=relaxed/simple; bh=v/cFd8LGc77JiQS6Ma1a9yIBm4YncIv4X5DpZLd5K70=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=eBfnZcAKpwHMrAeITPbaKiSd/aNVsdsyMBR/6F7a9RBdMA6/glfao1ohqlGT64fGC4cLamIxPOYUh49eY/Kwbk4PKcWL0POfQtFBNziFvrYmbX10VTnsevHUp60C4dmDmwUJL+2BgSI3QkRMTWksYnATHncggLDpKEnyJ02i6s8= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-876a8bb06b0so1193503739f.1 for ; Wed, 16 Jul 2025 07:50:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752677405; x=1753282205; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=sc0V+S5OAOz3pvNlHvI1SrT3sYqqIKrLyk5lIAGwRxU=; b=vMHtvjMcdUIMCgvFbngqU7TuTFb+EAsozZ0JupwE80u7i/4toJSHJDrDvKiLrOEZCH rQdXdXDMcBb0Jr1z2c3mBRDiDX1srBkBiv6G5Geg77LBDT8DcvfdAZgTK6VRIq70p2kH V1gi7Np30TAWvf3kLfXsyoItsl3KfuZkT8rfvK/w30nchkd+wMkET2bEC1O9nMEz2EVV 6ZavkYHxydbaa6Cn7e6H6PhpdZjFY8JdgiUfAvXy3s8IhZPTLBMKyqei76ijywP2JaSx RF8eo18n9o1S9gJ9VdFoKoPGEuAL4w/0D/L/JqvIAxwe6hNIRAcdS5Y2xKIHwE6mSQFo eJ1Q== X-Forwarded-Encrypted: i=1; AJvYcCWBm53VeSGO7q9VvTtyrti3Gw/VgLkuceFwQ9HCOtGn2zUYpsZsy06Q7HGYPT4wjXuCt9StrYWzvRIhUA==@vger.kernel.org X-Gm-Message-State: AOJu0YyaVaCKtvJd7lZF2FZmfRVrlHKPYL6e8oJzLJDNCaYoP9zzXLrl KjZx11tOnAIxLkHytucUYrgVnMHi8QKiVuNi7wBx6zPhrZUnBHgAITQPHzEbsc00BOngdcOHulx tZhWrjGNPIpWdZvbU54nmUTFz9XaS/c3eFIz4EIujAOth/+85cM12Gd/fmh4= X-Google-Smtp-Source: AGHT+IGdc8vzM7iSvXCp9mmrCm/Yx2viXXS0+jBJNeQ1/3p6asXTO6JfB2XsUtZHnhxp0zGrSm5hmCR7kciIQp0XhsrFyeM0Avm+ Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:4f42:b0:873:1c2d:18e7 with SMTP id ca18e2360f4ac-879c2ae999fmr240157039f.10.1752677404683; Wed, 16 Jul 2025 07:50:04 -0700 (PDT) Date: Wed, 16 Jul 2025 07:50:04 -0700 In-Reply-To: <78c3fb66-c30f-4c64-a499-61c1665186a8@rowland.harvard.edu> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6877bc1c.a70a0220.693ce.002b.GAE@google.com> Subject: Re: [syzbot] [input?] [usb?] UBSAN: shift-out-of-bounds in s32ton (2) From: syzbot To: bentiss@kernel.org, jikos@kernel.org, linux-input@vger.kernel.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" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: UBSAN: shift-out-of-bounds in s32ton usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 9 usb 1-1: New USB device found, idVendor=045e, idProduct=07da, bcdDevice= 0.00 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? microsoft 0003:045E:07DA.0001: ignoring exceeding usage max microsoft 0003:045E:07DA.0001: unsupported Resolution Multiplier 0 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in drivers/hid/hid-core.c:69:16 shift exponent 4294967295 is too large for 32-bit type '__s32' (aka 'int') CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.15.0-syzkaller-11339-gc2ca42f190b6-dirty #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x40 lib/ubsan.c:233 __ubsan_handle_shift_out_of_bounds+0x386/0x410 lib/ubsan.c:494 s32ton+0xde/0x140 drivers/hid/hid-core.c:69 hid_output_field drivers/hid/hid-core.c:1844 [inline] hid_output_report+0x419/0x790 drivers/hid/hid-core.c:1876 __hid_request+0x14a/0x420 drivers/hid/hid-core.c:1999 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline] hidinput_connect+0x218a/0x3030 drivers/hid/hid-input.c:2327 hid_connect+0x499/0x1980 drivers/hid/hid-core.c:2250 hid_hw_start+0xa8/0x120 drivers/hid/hid-core.c:2365 ms_probe+0x180/0x430 drivers/hid/hid-microsoft.c:391 __hid_device_probe drivers/hid/hid-core.c:2735 [inline] hid_device_probe+0x3a0/0x710 drivers/hid/hid-core.c:2772 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3692 hid_add_device+0x398/0x540 drivers/hid/hid-core.c:2918 usbhid_probe+0xe13/0x12a0 drivers/hid/usbhid/hid-core.c:1435 usb_probe_interface+0x644/0xbc0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3692 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26a/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3692 usb_new_device+0xa39/0x16c0 drivers/usb/core/hub.c:2663 hub_port_connect drivers/usb/core/hub.c:5531 [inline] hub_port_connect_change drivers/usb/core/hub.c:5671 [inline] port_event drivers/usb/core/hub.c:5831 [inline] hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5913 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---[ end trace ]--- Tested on: commit: c2ca42f1 HID: core: do not bypass hid_hw_raw_request git tree: git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git console output: https://syzkaller.appspot.com/x/log.txt?x=16e948f0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ec692dfd475747ff dashboard link: https://syzkaller.appspot.com/bug?extid=b63d677d63bcac06cf90 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 patch: https://syzkaller.appspot.com/x/patch.diff?x=13f6f58c580000