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/meson/Makefile | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 drivers/clk/meson/Makefile (limited to 'drivers/clk/meson/Makefile') diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile new file mode 100644 index 000000000..c6719694a --- /dev/null +++ b/drivers/clk/meson/Makefile @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Amlogic clock drivers + +obj-$(CONFIG_COMMON_CLK_MESON_CLKC_UTILS) += meson-clkc-utils.o +obj-$(CONFIG_COMMON_CLK_MESON_AO_CLKC) += meson-aoclk.o +obj-$(CONFIG_COMMON_CLK_MESON_CPU_DYNDIV) += clk-cpu-dyndiv.o +obj-$(CONFIG_COMMON_CLK_MESON_DUALDIV) += clk-dualdiv.o +obj-$(CONFIG_COMMON_CLK_MESON_MPLL) += clk-mpll.o +obj-$(CONFIG_COMMON_CLK_MESON_PHASE) += clk-phase.o +obj-$(CONFIG_COMMON_CLK_MESON_PLL) += clk-pll.o +obj-$(CONFIG_COMMON_CLK_MESON_REGMAP) += clk-regmap.o +obj-$(CONFIG_COMMON_CLK_MESON_SCLK_DIV) += sclk-div.o +obj-$(CONFIG_COMMON_CLK_MESON_VID_PLL_DIV) += vid-pll-div.o +obj-$(CONFIG_COMMON_CLK_MESON_VCLK) += vclk.o + +# Amlogic Clock controllers + +obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o +obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o +obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o +obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o +obj-$(CONFIG_COMMON_CLK_C3_PLL) += c3-pll.o +obj-$(CONFIG_COMMON_CLK_C3_PERIPHERALS) += c3-peripherals.o +obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o +obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o +obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o +obj-$(CONFIG_COMMON_CLK_S4_PLL) += s4-pll.o +obj-$(CONFIG_COMMON_CLK_S4_PERIPHERALS) += s4-peripherals.o +obj-$(CONFIG_COMMON_CLK_T7_PLL) += t7-pll.o +obj-$(CONFIG_COMMON_CLK_T7_PERIPHERALS) += t7-peripherals.o -- cgit v1.3.1