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/pinctrl/freescale/Makefile | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 drivers/pinctrl/freescale/Makefile (limited to 'drivers/pinctrl/freescale/Makefile') diff --git a/drivers/pinctrl/freescale/Makefile b/drivers/pinctrl/freescale/Makefile new file mode 100644 index 000000000..d27085c2b --- /dev/null +++ b/drivers/pinctrl/freescale/Makefile @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +# Freescale pin control drivers +obj-$(CONFIG_PINCTRL_IMX) += pinctrl-imx.o +obj-$(CONFIG_PINCTRL_IMX_SCU) += pinctrl-scu.o +obj-$(CONFIG_PINCTRL_IMX_SCMI) += pinctrl-imx-scmi.o +obj-$(CONFIG_PINCTRL_IMX1_CORE) += pinctrl-imx1-core.o +obj-$(CONFIG_PINCTRL_IMX1) += pinctrl-imx1.o +obj-$(CONFIG_PINCTRL_IMX27) += pinctrl-imx27.o +obj-$(CONFIG_PINCTRL_IMX35) += pinctrl-imx35.o +obj-$(CONFIG_PINCTRL_IMX50) += pinctrl-imx50.o +obj-$(CONFIG_PINCTRL_IMX51) += pinctrl-imx51.o +obj-$(CONFIG_PINCTRL_IMX53) += pinctrl-imx53.o +obj-$(CONFIG_PINCTRL_IMX6Q) += pinctrl-imx6q.o +obj-$(CONFIG_PINCTRL_IMX6Q) += pinctrl-imx6dl.o +obj-$(CONFIG_PINCTRL_IMX6SL) += pinctrl-imx6sl.o +obj-$(CONFIG_PINCTRL_IMX6SLL) += pinctrl-imx6sll.o +obj-$(CONFIG_PINCTRL_IMX6SX) += pinctrl-imx6sx.o +obj-$(CONFIG_PINCTRL_IMX6UL) += pinctrl-imx6ul.o +obj-$(CONFIG_PINCTRL_IMX7D) += pinctrl-imx7d.o +obj-$(CONFIG_PINCTRL_IMX7ULP) += pinctrl-imx7ulp.o +obj-$(CONFIG_PINCTRL_IMX8MM) += pinctrl-imx8mm.o +obj-$(CONFIG_PINCTRL_IMX8MN) += pinctrl-imx8mn.o +obj-$(CONFIG_PINCTRL_IMX8MP) += pinctrl-imx8mp.o +obj-$(CONFIG_PINCTRL_IMX8MQ) += pinctrl-imx8mq.o +obj-$(CONFIG_PINCTRL_IMX8QM) += pinctrl-imx8qm.o +obj-$(CONFIG_PINCTRL_IMX8QXP) += pinctrl-imx8qxp.o +obj-$(CONFIG_PINCTRL_IMX8DXL) += pinctrl-imx8dxl.o +obj-$(CONFIG_PINCTRL_IMX8ULP) += pinctrl-imx8ulp.o +obj-$(CONFIG_PINCTRL_IMX91) += pinctrl-imx91.o +obj-$(CONFIG_PINCTRL_IMX93) += pinctrl-imx93.o +obj-$(CONFIG_PINCTRL_VF610) += pinctrl-vf610.o +obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o +obj-$(CONFIG_PINCTRL_IMX23) += pinctrl-imx23.o +obj-$(CONFIG_PINCTRL_IMX25) += pinctrl-imx25.o +obj-$(CONFIG_PINCTRL_IMX28) += pinctrl-imx28.o +obj-$(CONFIG_PINCTRL_IMXRT1050) += pinctrl-imxrt1050.o +obj-$(CONFIG_PINCTRL_IMXRT1170) += pinctrl-imxrt1170.o -- cgit v1.3.1