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| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 10:43:19 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 07:58:36 -0700 |
| commit | 6668ed271eaefaa63e686bdfbedaeb7b8e492722 (patch) | |
| tree | 58e8288fead484f6755ad0815fc74c3742663761 /drivers/media/pci/Kconfig | |
| download | linux-stable-6668ed271eaefaa63e686bdfbedaeb7b8e492722.tar.gz linux-stable-6668ed271eaefaa63e686bdfbedaeb7b8e492722.zip | |
selftests/bpf: Reject graph kptr use after RCU unlockgrafted
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 <memxor@gmail.com>
Link: https://lore.kernel.org/r/20260904084325.52250-7-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/media/pci/Kconfig')
| -rw-r--r-- | drivers/media/pci/Kconfig | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/media/pci/Kconfig b/drivers/media/pci/Kconfig new file mode 100644 index 000000000..bfdb200f8 --- /dev/null +++ b/drivers/media/pci/Kconfig @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0-only + +if PCI + +menuconfig MEDIA_PCI_SUPPORT + bool "Media PCI Adapters" + help + Enable media drivers for PCI/PCIe bus. + If you have such devices, say Y. + +if MEDIA_PCI_SUPPORT + +if MEDIA_CAMERA_SUPPORT + comment "Media capture support" + +source "drivers/media/pci/hws/Kconfig" +source "drivers/media/pci/mgb4/Kconfig" +source "drivers/media/pci/solo6x10/Kconfig" +source "drivers/media/pci/tw5864/Kconfig" +source "drivers/media/pci/tw68/Kconfig" +source "drivers/media/pci/tw686x/Kconfig" +source "drivers/media/pci/zoran/Kconfig" + +endif + +if MEDIA_ANALOG_TV_SUPPORT + comment "Media capture/analog TV support" + +source "drivers/media/pci/dt3155/Kconfig" +source "drivers/media/pci/ivtv/Kconfig" +source "drivers/media/pci/saa7146/Kconfig" + +endif + +if MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT + comment "Media capture/analog/hybrid TV support" + +source "drivers/media/pci/bt8xx/Kconfig" +source "drivers/media/pci/cobalt/Kconfig" +source "drivers/media/pci/cx18/Kconfig" +source "drivers/media/pci/cx23885/Kconfig" +source "drivers/media/pci/cx25821/Kconfig" +source "drivers/media/pci/cx88/Kconfig" +source "drivers/media/pci/saa7134/Kconfig" +source "drivers/media/pci/saa7164/Kconfig" + +endif + +if MEDIA_DIGITAL_TV_SUPPORT + comment "Media digital TV PCI Adapters" + +source "drivers/media/pci/b2c2/Kconfig" +source "drivers/media/pci/ddbridge/Kconfig" +source "drivers/media/pci/dm1105/Kconfig" +source "drivers/media/pci/mantis/Kconfig" +source "drivers/media/pci/netup_unidvb/Kconfig" +source "drivers/media/pci/ngene/Kconfig" +source "drivers/media/pci/pluto2/Kconfig" +source "drivers/media/pci/pt1/Kconfig" +source "drivers/media/pci/pt3/Kconfig" +source "drivers/media/pci/smipcie/Kconfig" +source "drivers/media/pci/ttpci/Kconfig" + +endif + +config VIDEO_PCI_SKELETON + tristate "Skeleton PCI V4L2 driver" + depends on SAMPLES + depends on MEDIA_TEST_SUPPORT + depends on PCI && VIDEO_DEV + select VIDEOBUF2_MEMOPS + select VIDEOBUF2_DMA_CONTIG + help + Enable build of the skeleton PCI driver, used as a reference + when developing new drivers. + +source "drivers/media/pci/intel/Kconfig" + +endif #MEDIA_PCI_SUPPORT +endif #PCI |