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/hda/controllers/Kconfig | 57 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 sound/hda/controllers/Kconfig (limited to 'sound/hda/controllers/Kconfig') diff --git a/sound/hda/controllers/Kconfig b/sound/hda/controllers/Kconfig new file mode 100644 index 000000000..26ca69b09 --- /dev/null +++ b/sound/hda/controllers/Kconfig @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: GPL-2.0-only +config SND_HDA_INTEL + tristate "HD Audio PCI" + depends on PCI + select SND_HDA + select SND_INTEL_DSP_CONFIG + help + Say Y here to include support for Intel "High Definition + Audio" (Azalia) and its compatible devices. + + This option enables the HD-audio controller. Don't forget + to choose the appropriate HD-audio codec options. + + To compile this driver as a module, choose M here: the module + will be called snd-hda-intel. + +config SND_HDA_TEGRA + tristate "NVIDIA Tegra HD Audio" + depends on ARCH_TEGRA + select SND_HDA + select SND_HDA_ALIGNED_MMIO + help + Say Y here to support the HDA controller present in NVIDIA + Tegra SoCs + + This options enables support for the HD Audio controller + present in some NVIDIA Tegra SoCs, used to communicate audio + to the HDMI output. + + To compile this driver as a module, choose M here: the module + will be called snd-hda-tegra. + +config SND_HDA_CIX_IPBLOQ + tristate "CIX IPBLOQ HD Audio" + depends on ARCH_CIX || COMPILE_TEST + depends on ARCH_DMA_ADDR_T_64BIT + select SND_HDA + select SND_HDA_ALIGNED_MMIO + help + Say Y here to support the HDA controller present in CIX SoCs + + This options enables support for the HD Audio controller + present in some CIX SoCs. + + To compile this driver as a module, choose M here: the module + will be called snd-hda-cix-ipbloq. + +config SND_HDA_ACPI + tristate "HD Audio ACPI" + depends on ACPI + select SND_HDA + help + Say Y here to include support for Azalia-compatible HDA controllers + which are advertised via ACPI objects. + + To compile this driver as a module, choose M here: the module + will be called snd-hda-acpi. -- cgit v1.3.1