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 --- sound/firewire/Makefile | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 sound/firewire/Makefile (limited to 'sound/firewire/Makefile') diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile new file mode 100644 index 000000000..45018a5c2 --- /dev/null +++ b/sound/firewire/Makefile @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0 +# To find a header included by define_trace.h. +CFLAGS_amdtp-stream.o := -I$(src) + +snd-firewire-lib-y := lib.o iso-resources.o packets-buffer.o \ + fcp.o cmp.o amdtp-stream.o amdtp-am824.o +snd-isight-y := isight.o + +obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o +obj-$(CONFIG_SND_DICE) += dice/ +obj-$(CONFIG_SND_OXFW) += oxfw/ +obj-$(CONFIG_SND_ISIGHT) += snd-isight.o +obj-$(CONFIG_SND_FIREWORKS) += fireworks/ +obj-$(CONFIG_SND_BEBOB) += bebob/ +obj-$(CONFIG_SND_FIREWIRE_DIGI00X) += digi00x/ +obj-$(CONFIG_SND_FIREWIRE_TASCAM) += tascam/ +obj-$(CONFIG_SND_FIREWIRE_MOTU) += motu/ +obj-$(CONFIG_SND_FIREFACE) += fireface/ -- cgit v1.3.1