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/media/pci/Makefile | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 drivers/media/pci/Makefile (limited to 'drivers/media/pci/Makefile') diff --git a/drivers/media/pci/Makefile b/drivers/media/pci/Makefile new file mode 100644 index 000000000..c4508b672 --- /dev/null +++ b/drivers/media/pci/Makefile @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the kernel multimedia device drivers. +# + +# Please keep it alphabetically sorted by directory +# (e. g. LC_ALL=C sort Makefile) +obj-y += ttpci/ \ + b2c2/ \ + pluto2/ \ + dm1105/ \ + pt1/ \ + pt3/ \ + mantis/ \ + ngene/ \ + ddbridge/ \ + saa7146/ \ + smipcie/ \ + netup_unidvb/ \ + intel/ + +# Please keep it alphabetically sorted by Kconfig name +# (e. g. LC_ALL=C sort Makefile) + +obj-$(CONFIG_VIDEO_BT848) += bt8xx/ +obj-$(CONFIG_VIDEO_COBALT) += cobalt/ +obj-$(CONFIG_VIDEO_CX18) += cx18/ +obj-$(CONFIG_VIDEO_CX23885) += cx23885/ +obj-$(CONFIG_VIDEO_CX25821) += cx25821/ +obj-$(CONFIG_VIDEO_CX88) += cx88/ +obj-$(CONFIG_VIDEO_DT3155) += dt3155/ +obj-$(CONFIG_VIDEO_HWS) += hws/ +obj-$(CONFIG_VIDEO_IVTV) += ivtv/ +obj-$(CONFIG_VIDEO_MGB4) += mgb4/ +obj-$(CONFIG_VIDEO_SAA7134) += saa7134/ +obj-$(CONFIG_VIDEO_SAA7164) += saa7164/ +obj-$(CONFIG_VIDEO_SOLO6X10) += solo6x10/ +obj-$(CONFIG_VIDEO_TW5864) += tw5864/ +obj-$(CONFIG_VIDEO_TW686X) += tw686x/ +obj-$(CONFIG_VIDEO_TW68) += tw68/ +obj-$(CONFIG_VIDEO_ZORAN) += zoran/ -- cgit v1.3.1