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/clk/samsung/Makefile | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 drivers/clk/samsung/Makefile (limited to 'drivers/clk/samsung/Makefile') diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile new file mode 100644 index 000000000..b3c4ef4e0 --- /dev/null +++ b/drivers/clk/samsung/Makefile @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Samsung Clock specific Makefile +# + +obj-$(CONFIG_COMMON_CLK) += clk.o clk-pll.o clk-cpu.o +obj-$(CONFIG_EXYNOS_3250_COMMON_CLK) += clk-exynos3250.o +obj-$(CONFIG_EXYNOS_4_COMMON_CLK) += clk-exynos4.o +obj-$(CONFIG_EXYNOS_4_COMMON_CLK) += clk-exynos4412-isp.o +obj-$(CONFIG_EXYNOS_5250_COMMON_CLK) += clk-exynos5250.o +obj-$(CONFIG_EXYNOS_5250_COMMON_CLK) += clk-exynos5-subcmu.o +obj-$(CONFIG_EXYNOS_5260_COMMON_CLK) += clk-exynos5260.o +obj-$(CONFIG_EXYNOS_5410_COMMON_CLK) += clk-exynos5410.o +obj-$(CONFIG_EXYNOS_5420_COMMON_CLK) += clk-exynos5420.o +obj-$(CONFIG_EXYNOS_5420_COMMON_CLK) += clk-exynos5-subcmu.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-artpec8.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-artpec9.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos5433.o +obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o +obj-$(CONFIG_EXYNOS_CLKOUT) += clk-exynos-clkout.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos-arm64.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos2200.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7870.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7885.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos850.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos8895.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos990.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynosautov9.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynosautov920.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-gs101.o +obj-$(CONFIG_EXYNOS_ACPM_CLK) += clk-acpm.o +obj-$(CONFIG_S3C64XX_COMMON_CLK) += clk-s3c64xx.o +obj-$(CONFIG_S5PV210_COMMON_CLK) += clk-s5pv210.o clk-s5pv210-audss.o +obj-$(CONFIG_TESLA_FSD_COMMON_CLK) += clk-fsd.o -- cgit v1.3.1