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/sunxi/Makefile | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 drivers/pinctrl/sunxi/Makefile (limited to 'drivers/pinctrl/sunxi/Makefile') diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile new file mode 100644 index 000000000..951b3f1e4 --- /dev/null +++ b/drivers/pinctrl/sunxi/Makefile @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: GPL-2.0 +# Core +obj-y += pinctrl-sunxi.o +obj-y += pinctrl-sunxi-dt.o + +# SoC Drivers +obj-$(CONFIG_PINCTRL_SUNIV_F1C100S) += pinctrl-suniv-f1c100s.o +obj-$(CONFIG_PINCTRL_SUN4I_A10) += pinctrl-sun4i-a10.o +obj-$(CONFIG_PINCTRL_SUN5I) += pinctrl-sun5i.o +obj-$(CONFIG_PINCTRL_SUN6I_A31) += pinctrl-sun6i-a31.o +obj-$(CONFIG_PINCTRL_SUN6I_A31_R) += pinctrl-sun6i-a31-r.o +obj-$(CONFIG_PINCTRL_SUN8I_A23) += pinctrl-sun8i-a23.o +obj-$(CONFIG_PINCTRL_SUN8I_A23_R) += pinctrl-sun8i-a23-r.o +obj-$(CONFIG_PINCTRL_SUN8I_A33) += pinctrl-sun8i-a33.o +obj-$(CONFIG_PINCTRL_SUN50I_A64) += pinctrl-sun50i-a64.o +obj-$(CONFIG_PINCTRL_SUN50I_A64_R) += pinctrl-sun50i-a64-r.o +obj-$(CONFIG_PINCTRL_SUN50I_A100) += pinctrl-sun50i-a100.o +obj-$(CONFIG_PINCTRL_SUN50I_A100_R) += pinctrl-sun50i-a100-r.o +obj-$(CONFIG_PINCTRL_SUN8I_A83T) += pinctrl-sun8i-a83t.o +obj-$(CONFIG_PINCTRL_SUN8I_A83T_R) += pinctrl-sun8i-a83t-r.o +obj-$(CONFIG_PINCTRL_SUN8I_H3) += pinctrl-sun8i-h3.o +obj-$(CONFIG_PINCTRL_SUN8I_H3_R) += pinctrl-sun8i-h3-r.o +obj-$(CONFIG_PINCTRL_SUN8I_V3S) += pinctrl-sun8i-v3s.o +obj-$(CONFIG_PINCTRL_SUN20I_D1) += pinctrl-sun20i-d1.o +obj-$(CONFIG_PINCTRL_SUN50I_H5) += pinctrl-sun50i-h5.o +obj-$(CONFIG_PINCTRL_SUN50I_H6) += pinctrl-sun50i-h6.o +obj-$(CONFIG_PINCTRL_SUN50I_H6_R) += pinctrl-sun50i-h6-r.o +obj-$(CONFIG_PINCTRL_SUN50I_H616) += pinctrl-sun50i-h616.o +obj-$(CONFIG_PINCTRL_SUN50I_H616_R) += pinctrl-sun50i-h616-r.o +obj-$(CONFIG_PINCTRL_SUN55I_A523) += pinctrl-sun55i-a523.o +obj-$(CONFIG_PINCTRL_SUN55I_A523_R) += pinctrl-sun55i-a523-r.o +obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o +obj-$(CONFIG_PINCTRL_SUN9I_A80_R) += pinctrl-sun9i-a80-r.o -- cgit v1.3.1