From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/hid/hid-nti.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 drivers/hid/hid-nti.c (limited to 'drivers/hid/hid-nti.c') diff --git a/drivers/hid/hid-nti.c b/drivers/hid/hid-nti.c new file mode 100644 index 000000000..03f7dd491 --- /dev/null +++ b/drivers/hid/hid-nti.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * USB HID quirks support for Network Technologies, Inc. "USB-SUN" USB + * adapter for pre-USB Sun keyboards + * + * Copyright (c) 2011 Google, Inc. + * + * Based on HID apple driver by + * Copyright (c) 1999 Andreas Gal + * Copyright (c) 2000-2005 Vojtech Pavlik + * Copyright (c) 2005 Michael Haboustak for Concept2, Inc + * Copyright (c) 2006-2007 Jiri Kosina + * Copyright (c) 2008 Jiri Slaby + */ + +/* + */ + +#include +#include +#include +#include + +#include "hid-ids.h" + +MODULE_AUTHOR("Jonathan Klabunde Tomer "); +MODULE_DESCRIPTION("HID driver for Network Technologies USB-SUN keyboard adapter"); + +/* + * NTI Sun keyboard adapter has wrong logical maximum in report descriptor + */ +static const __u8 *nti_usbsun_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) +{ + if (*rsize >= 60 && rdesc[53] == 0x65 && rdesc[59] == 0x65) { + hid_info(hdev, "fixing up NTI USB-SUN keyboard adapter report descriptor\n"); + rdesc[53] = rdesc[59] = 0xe7; + } + return rdesc; +} + +static const struct hid_device_id nti_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_NTI, USB_DEVICE_ID_USB_SUN) }, + { } +}; +MODULE_DEVICE_TABLE(hid, nti_devices); + +static struct hid_driver nti_driver = { + .name = "nti", + .id_table = nti_devices, + .report_fixup = nti_usbsun_report_fixup +}; + +module_hid_driver(nti_driver); + +MODULE_LICENSE("GPL"); -- cgit v1.3.1