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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/clk/bcm/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/clk/bcm/Makefile')
| -rw-r--r-- | drivers/clk/bcm/Makefile | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile new file mode 100644 index 000000000..d0b6f4b1f --- /dev/null +++ b/drivers/clk/bcm/Makefile @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_CLK_BCM_63XX) += clk-bcm63xx.o +obj-$(CONFIG_CLK_BCM_63XX_GATE) += clk-bcm63xx-gate.o +obj-$(CONFIG_CLK_BCM63268_TIMER) += clk-bcm63268-timer.o +obj-$(CONFIG_CLK_BCM_KONA) += clk-kona.o +obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o +obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o +obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm21664.o +obj-$(CONFIG_COMMON_CLK_IPROC) += clk-iproc-armpll.o clk-iproc-pll.o clk-iproc-asiu.o +obj-$(CONFIG_CLK_BCM2711_DVP) += clk-bcm2711-dvp.o +obj-$(CONFIG_CLK_BCM2835) += clk-bcm2835.o +obj-$(CONFIG_CLK_BCM2835) += clk-bcm2835-aux.o +obj-$(CONFIG_CLK_RASPBERRYPI) += clk-raspberrypi.o +obj-$(CONFIG_ARCH_BCM_53573) += clk-bcm53573-ilp.o +obj-$(CONFIG_CLK_BCM_CYGNUS) += clk-cygnus.o +obj-$(CONFIG_CLK_BCM_HR2) += clk-hr2.o +obj-$(CONFIG_CLK_BCM_NSP) += clk-nsp.o +obj-$(CONFIG_CLK_BCM_NS2) += clk-ns2.o +obj-$(CONFIG_CLK_BCM_SR) += clk-sr.o |