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/cdns3/Kconfig | 115 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 drivers/usb/cdns3/Kconfig (limited to 'drivers/usb/cdns3/Kconfig') diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig new file mode 100644 index 000000000..39ad23d1a --- /dev/null +++ b/drivers/usb/cdns3/Kconfig @@ -0,0 +1,115 @@ +config USB_CDNS_SUPPORT + tristate "Cadence USB Support" + depends on USB_SUPPORT && HAS_DMA + depends on USB || USB_GADGET + depends on USB if !USB_GADGET + depends on USB_GADGET if !USB + select USB_XHCI_PLATFORM if USB_XHCI_HCD + select USB_ROLE_SWITCH + help + Say Y here if your system has a Cadence USBSS or USBSSP + dual-role controller. + It supports: dual-role switch, Host-only, and Peripheral-only. + +if USB_CDNS_SUPPORT + +config USB_CDNS3 + tristate "Cadence USB dual-role controller (USBSS and USBSSP)" + depends on USB_CDNS_SUPPORT + help + Say Y or M here if your system has an on-chip Cadence USB + dual-role controller. This covers both USBSS (USB 3.0) and + USBSSP (SuperSpeed Plus) IP; the driver detects the variant at + runtime. + + The core driver (core, DRD, generic platform binding for the + "cdns,usb3" device tree compatible, optional host and gadget) + builds as one module named cdns.ko when built as a loadable + module. + + It supports: dual-role switch, Host-only, and Peripheral-only. + +if USB_CDNS3 + +config USB_CDNS3_HOST + bool "Cadence USB host controller (xHCI)" + depends on USB=y || USB=USB_CDNS3 + help + Say Y here to enable host controller functionality for Cadence + USBSS and USBSSP dual-role controllers. + + The host controller is xHCI compliant and uses the standard + xHCI driver. + +config USB_CDNS3_GADGET + bool "Cadence USB device controller (USBSS and USBSSP)" + depends on USB_GADGET=y || USB_GADGET=USB_CDNS3 + help + Say Y here to include Cadence USB device (gadget) support for + both USBSS (USB 3.0) and USBSSP (SuperSpeed Plus) IP in the + cdns.ko module. The implementation is selected at runtime from + the detected controller version. + + USBSS gadget supports FF, HS and SS mode (not LS or SSP). + USBSSP gadget supports FF, HS, SS and SSP mode (not LS). + +comment "Platform glue driver support" + +config USB_CDNS3_PCI_WRAP + tristate "Cadence USB3 support on PCIe-based platforms" + depends on USB_PCI && ACPI + default USB_CDNS3 + help + If you're using the USBSS Core IP with a PCIe, please say + 'Y' or 'M' here. + + If you choose to build this driver as module it will + be dynamically linked and module will be called cdns3-pci.ko + +config USB_CDNSP_PCI + tristate "Cadence USBSSP support on PCIe-based platforms" + depends on USB_PCI && ACPI + default USB_CDNS3 + help + If you're using the USBSSP Core IP with a PCIe, please say + 'Y' or 'M' here. + + If you choose to build this driver as module it will + be dynamically linked and module will be called cdnsp-pci.ko + +config USB_CDNS3_TI + tristate "Cadence USB3 support on TI platforms" + depends on ARCH_K3 || COMPILE_TEST + default USB_CDNS3 + help + Say 'Y' or 'M' here if you are building for Texas Instruments + platforms that contain Cadence USB3 controller core. + + e.g. J721e. + +config USB_CDNS3_IMX + tristate "Cadence USB3 support on NXP i.MX platforms" + depends on ARCH_MXC || COMPILE_TEST + default USB_CDNS3 + help + Say 'Y' or 'M' here if you are building for NXP i.MX + platforms that contain Cadence USB3 controller core. + + For example, imx8qm and imx8qxp. + +config USB_CDNS3_STARFIVE + tristate "Cadence USB3 support on StarFive SoC platforms" + depends on ARCH_STARFIVE || COMPILE_TEST + default USB_CDNS3 + help + Say 'Y' or 'M' here if you are building for StarFive SoCs + platforms that contain Cadence USB3 controller core. + + e.g. JH7110. + + If you choose to build this driver as module it will + be dynamically linked and module will be called cdns3-starfive.ko + +endif # USB_CDNS3 + +endif # USB_CDNS_SUPPORT -- cgit v1.3.1