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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 /include/acpi/acpi.h | |
| 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 'include/acpi/acpi.h')
| -rw-r--r-- | include/acpi/acpi.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/acpi/acpi.h b/include/acpi/acpi.h new file mode 100644 index 000000000..07e3d6e21 --- /dev/null +++ b/include/acpi/acpi.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/****************************************************************************** + * + * Name: acpi.h - Master public include file used to interface to ACPICA + * + * Copyright (C) 2000 - 2026, Intel Corp. + * + *****************************************************************************/ + +#ifndef __ACPI_H__ +#define __ACPI_H__ + +/* + * Public include files for use by code that will interface to ACPICA. + * + * Information includes the ACPICA data types, names, exceptions, and + * external interface prototypes. Also included are the definitions for + * all ACPI tables (FADT, MADT, etc.) + * + * Note: The order of these include files is important. + */ +#include <acpi/platform/acenv.h> /* Environment-specific items */ +#include <acpi/acnames.h> /* Common ACPI names and strings */ +#include <acpi/actypes.h> /* ACPICA data types and structures */ +#include <acpi/acexcep.h> /* ACPICA exceptions */ +#include <acpi/actbl.h> /* ACPI table definitions */ +#include <acpi/acrestyp.h> /* Resource Descriptor structs */ +#include <acpi/platform/acenvex.h> /* Extra environment-specific items */ +#include <acpi/acoutput.h> /* Error output and Debug macros */ +#include <acpi/acpiosxf.h> /* OSL interfaces (ACPICA-to-OS) */ +#include <acpi/acpixf.h> /* ACPI core subsystem external interfaces */ + +#endif /* __ACPI_H__ */ |