From 33a154a96e71a34a1bcca9f40da343dbbf7b38b4 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Thu, 1 Oct 2026 14:52:55 +0000 Subject: selftests/bpf: Test packet range of pointers sharing an id Add tests where two packet pointers share an id and tightening one pointer's umax from its var_off would put it less than their constant distance from the other's umax: with an index & 0x38 capped at 50, the base pointer keeps umax 50, so the pointer 8 bytes further on must keep umax 58, even though its known bits allow at most 56. These refused a valid program or accepted an out-of-bounds access before the fix: - check the advanced copy, load through the base: valid, was refused; - check the base, load the byte at base + 1 through a copy advanced by 8: was accepted; - check base + 4, load 4 bytes at base + 2 through base + 8: reads two bytes past the checked range, was accepted; - the same as the second with data_meta pointers checked against data: was accepted. These pass with and without the fix and cover nearby paths: - subtract an unknown scalar from a checked pointer and load below it (the range is kept across a new id); - reach a load through two paths whose checks cover 8 and 7 bytes after the loaded pointer; the second path must not be pruned by the first; - spill a copy of a pointer, check the pointer, fill the copy and load one byte past the checked range: the load is refused, and the copy has the range of the check. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20261001145255.855630-2-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- drivers/usb/dwc2/Kconfig | 97 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 drivers/usb/dwc2/Kconfig (limited to 'drivers/usb/dwc2/Kconfig') diff --git a/drivers/usb/dwc2/Kconfig b/drivers/usb/dwc2/Kconfig new file mode 100644 index 000000000..d7af55a8e --- /dev/null +++ b/drivers/usb/dwc2/Kconfig @@ -0,0 +1,97 @@ +# SPDX-License-Identifier: GPL-2.0 + +config USB_DWC2 + tristate "DesignWare USB2 DRD Core Support" + depends on HAS_DMA + depends on USB || USB_GADGET + depends on HAS_IOMEM + select USB_ROLE_SWITCH + help + Say Y here if your system has a Dual Role Hi-Speed USB + controller based on the DesignWare HSOTG IP Core. + + For host mode, if you choose to build the driver as dynamically + linked modules, the core module will be called dwc2.ko, the PCI + bus interface module (if you have a PCI bus system) will be + called dwc2_pci.ko, and the platform interface module (for + controllers directly connected to the CPU) will be called + dwc2_platform.ko. For all modes(host, gadget and dual-role), there + will be an additional module named dwc2.ko. + +if USB_DWC2 + +choice + prompt "DWC2 Mode Selection" + default USB_DWC2_DUAL_ROLE if (USB && USB_GADGET) + default USB_DWC2_HOST if (USB && !USB_GADGET) + default USB_DWC2_PERIPHERAL if (!USB && USB_GADGET) + +config USB_DWC2_HOST + bool "Host only mode" + depends on USB=y || (USB_DWC2=m && USB) + help + The Designware USB2.0 high-speed host controller + integrated into many SoCs. Select this option if you want the + driver to operate in Host-only mode. + +comment "Gadget/Dual-role mode requires USB Gadget support to be enabled" + +config USB_DWC2_PERIPHERAL + bool "Gadget only mode" + depends on USB_GADGET=y || USB_GADGET=USB_DWC2 + help + The Designware USB2.0 high-speed gadget controller + integrated into many SoCs. Select this option if you want the + driver to operate in Peripheral-only mode. This option requires + USB_GADGET to be enabled. + +config USB_DWC2_DUAL_ROLE + bool "Dual Role mode" + depends on (USB=y && USB_GADGET=y) || (USB_DWC2=m && USB && USB_GADGET) + help + Select this option if you want the driver to work in a dual-role + mode. In this mode both host and gadget features are enabled, and + the role will be determined by the cable that gets plugged-in. This + option requires USB_GADGET to be enabled. +endchoice + +config USB_DWC2_PCI + tristate "DWC2 PCI" + depends on USB_PCI + depends on USB_GADGET || !USB_GADGET + select NOP_USB_XCEIV + help + The Designware USB2.0 PCI interface module for controllers + connected to a PCI bus. + +config USB_DWC2_DEBUG + bool "Enable Debugging Messages" + help + Say Y here to enable debugging messages in the DWC2 Driver. + +config USB_DWC2_VERBOSE + bool "Enable Verbose Debugging Messages" + depends on USB_DWC2_DEBUG + help + Say Y here to enable verbose debugging messages in the DWC2 Driver. + WARNING: Enabling this will quickly fill your message log. + If in doubt, say N. + +config USB_DWC2_TRACK_MISSED_SOFS + bool "Enable Missed SOF Tracking" + help + Say Y here to enable logging of missed SOF events to the dmesg log. + WARNING: This feature is still experimental. + If in doubt, say N. + +config USB_DWC2_DEBUG_PERIODIC + bool "Enable Debugging Messages For Periodic Transfers" + depends on USB_DWC2_DEBUG || USB_DWC2_VERBOSE + default y + help + Say N here to disable (verbose) debugging messages to be + logged for periodic transfers. This allows better debugging of + non-periodic transfers, but of course the debug logs will be + incomplete. Note that this also disables some debug messages + for which the transfer type cannot be deduced. +endif -- cgit v1.3.1