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/soc/ti/Makefile | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 drivers/soc/ti/Makefile (limited to 'drivers/soc/ti/Makefile') diff --git a/drivers/soc/ti/Makefile b/drivers/soc/ti/Makefile new file mode 100644 index 000000000..cb800a745 --- /dev/null +++ b/drivers/soc/ti/Makefile @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# TI Keystone SOC drivers +# +obj-$(CONFIG_KEYSTONE_NAVIGATOR_QMSS) += knav_qmss.o +knav_qmss-y := knav_qmss_queue.o knav_qmss_acc.o +obj-$(CONFIG_KEYSTONE_NAVIGATOR_DMA) += knav_dma.o +obj-$(CONFIG_AMX3_PM) += pm33xx.o +obj-$(CONFIG_WKUP_M3_IPC) += wkup_m3_ipc.o +obj-$(CONFIG_TI_SCI_INTA_MSI_DOMAIN) += ti_sci_inta_msi.o +obj-$(CONFIG_TI_K3_RINGACC) += k3-ringacc.o +obj-$(CONFIG_TI_K3_SOCINFO) += k3-socinfo.o +obj-$(CONFIG_TI_PRUSS) += pruss.o +obj-$(CONFIG_POWER_AVS_OMAP) += smartreflex.o -- cgit v1.3.1