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/pci/echoaudio/Makefile | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 sound/pci/echoaudio/Makefile (limited to 'sound/pci/echoaudio/Makefile') diff --git a/sound/pci/echoaudio/Makefile b/sound/pci/echoaudio/Makefile new file mode 100644 index 000000000..96667641c --- /dev/null +++ b/sound/pci/echoaudio/Makefile @@ -0,0 +1,35 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for ALSA Echoaudio soundcard drivers +# Copyright (c) 2003 by Giuliano Pochini +# + +snd-darla20-y := darla20.o +snd-gina20-y := gina20.o +snd-layla20-y := layla20.o +snd-darla24-y := darla24.o +snd-gina24-y := gina24.o +snd-layla24-y := layla24.o +snd-mona-y := mona.o +snd-mia-y := mia.o +snd-echo3g-y := echo3g.o +snd-indigo-y := indigo.o +snd-indigoio-y := indigoio.o +snd-indigodj-y := indigodj.o +snd-indigoiox-y := indigoiox.o +snd-indigodjx-y := indigodjx.o + +obj-$(CONFIG_SND_DARLA20) += snd-darla20.o +obj-$(CONFIG_SND_GINA20) += snd-gina20.o +obj-$(CONFIG_SND_LAYLA20) += snd-layla20.o +obj-$(CONFIG_SND_DARLA24) += snd-darla24.o +obj-$(CONFIG_SND_GINA24) += snd-gina24.o +obj-$(CONFIG_SND_LAYLA24) += snd-layla24.o +obj-$(CONFIG_SND_MONA) += snd-mona.o +obj-$(CONFIG_SND_MIA) += snd-mia.o +obj-$(CONFIG_SND_ECHO3G) += snd-echo3g.o +obj-$(CONFIG_SND_INDIGO) += snd-indigo.o +obj-$(CONFIG_SND_INDIGOIO) += snd-indigoio.o +obj-$(CONFIG_SND_INDIGODJ) += snd-indigodj.o +obj-$(CONFIG_SND_INDIGOIOX) += snd-indigoiox.o +obj-$(CONFIG_SND_INDIGODJX) += snd-indigodjx.o -- cgit v1.3.1