From 6668ed271eaefaa63e686bdfbedaeb7b8e492722 Mon Sep 17 00:00:00 2001 From: Kumar Kartikeya Dwivedi Date: Fri, 4 Sep 2026 10:43:19 +0200 Subject: selftests/bpf: Reject graph kptr use after RCU unlock Add a sleepable verifier test that loads a graph-node local kptr in an explicit RCU read-side critical section, then passes its node to bpf_rbtree_remove() after the section ends. Before the verifier fix, the stale NON_OWN_REF flag makes the node look like a live borrowed reference and the program is accepted. After the fix, the pointer is demoted without NON_OWN_REF and the graph kfunc argument is rejected. Also exercise a graph kptr loaded while a spin lock provides implicit RCU protection. The pointer must be invalidated when the lock is released, which guards the required ordering between non-owning-reference invalidation and RCU demotion. Update the existing fault-protected load test state description. The post-unlock pointer no longer carries NON_OWN_REF, but remains readable because the load is rewritten to use BPF_PROBE_MEM. Signed-off-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/r/20260904084325.52250-7-memxor@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/usb/misc/Makefile | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 drivers/usb/misc/Makefile (limited to 'drivers/usb/misc/Makefile') diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile new file mode 100644 index 000000000..494ab0377 --- /dev/null +++ b/drivers/usb/misc/Makefile @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the rest of the USB drivers +# (the ones that don't fit into any other categories) +# +obj-$(CONFIG_USB_ADUTUX) += adutux.o +obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o +obj-$(CONFIG_USB_CYPRESS_CY7C63) += cypress_cy7c63.o +obj-$(CONFIG_USB_CYTHERM) += cytherm.o +obj-$(CONFIG_USB_EMI26) += emi26.o +obj-$(CONFIG_USB_EMI62) += emi62.o +obj-$(CONFIG_USB_EZUSB_FX2) += ezusb.o +obj-$(CONFIG_APPLE_MFI_FASTCHARGE) += apple-mfi-fastcharge.o +obj-$(CONFIG_USB_LJCA) += usb-ljca.o +obj-$(CONFIG_USB_USBIO) += usbio.o +obj-$(CONFIG_USB_IDMOUSE) += idmouse.o +obj-$(CONFIG_USB_IOWARRIOR) += iowarrior.o +obj-$(CONFIG_USB_ISIGHTFW) += isight_firmware.o +obj-$(CONFIG_USB_LCD) += usblcd.o +obj-$(CONFIG_USB_LD) += ldusb.o +obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o +obj-$(CONFIG_USB_QCOM_EUD) += qcom_eud.o +obj-$(CONFIG_USB_TEST) += usbtest.o +obj-$(CONFIG_USB_EHSET_TEST_FIXTURE) += ehset.o +obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o +obj-$(CONFIG_USB_USS720) += uss720.o +obj-$(CONFIG_USB_SEVSEG) += usbsevseg.o +obj-$(CONFIG_USB_YUREX) += yurex.o +obj-$(CONFIG_USB_HUB_USB251XB) += usb251xb.o +obj-$(CONFIG_USB_HSIC_USB3503) += usb3503.o +obj-$(CONFIG_USB_HSIC_USB4604) += usb4604.o +obj-$(CONFIG_USB_CHAOSKEY) += chaoskey.o + +obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/ +obj-$(CONFIG_USB_LINK_LAYER_TEST) += lvstest.o +obj-$(CONFIG_BRCM_USB_PINMAP) += brcmstb-usb-pinmap.o +obj-$(CONFIG_USB_ONBOARD_DEV) += onboard_usb_dev.o -- cgit v1.3.1