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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/usb/Makefile | |
| 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/usb/Makefile')
| -rw-r--r-- | drivers/media/usb/Makefile | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/media/usb/Makefile b/drivers/media/usb/Makefile new file mode 100644 index 000000000..6d171beea --- /dev/null +++ b/drivers/media/usb/Makefile @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the USB media device drivers +# + +# DVB USB-only drivers. Please keep it alphabetically sorted by directory name +# (e. g. LC_ALL=C sort Makefile) +obj-y += b2c2/ +obj-y += dvb-usb/ +obj-y += dvb-usb-v2/ +obj-y += s2255/ +obj-y += siano/ +obj-y += ttusb-budget/ +obj-y += ttusb-dec/ + +# Please keep it alphabetically sorted by Kconfig name +# (e. g. LC_ALL=C sort Makefile) +obj-$(CONFIG_DVB_AS102) += as102/ +obj-$(CONFIG_USB_AIRSPY) += airspy/ +obj-$(CONFIG_USB_GSPCA) += gspca/ +obj-$(CONFIG_USB_HACKRF) += hackrf/ +obj-$(CONFIG_USB_MSI2500) += msi2500/ +obj-$(CONFIG_USB_PWC) += pwc/ +obj-$(CONFIG_USB_VIDEO_CLASS) += uvc/ +obj-$(CONFIG_VIDEO_AU0828) += au0828/ +obj-$(CONFIG_VIDEO_CX231XX) += cx231xx/ +obj-$(CONFIG_VIDEO_EM28XX) += em28xx/ +obj-$(CONFIG_VIDEO_GO7007) += go7007/ +obj-$(CONFIG_VIDEO_HDPVR) += hdpvr/ +obj-$(CONFIG_VIDEO_PVRUSB2) += pvrusb2/ +obj-$(CONFIG_VIDEO_STK1160) += stk1160/ +obj-$(CONFIG_VIDEO_USBTV) += usbtv/ |