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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 19:53:15 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-10-03 21:24:10 +0200 |
| commit | 2e89345764c6a87c778e776c0590bda07425f251 (patch) | |
| tree | 9b880996c0ca4ba239842d4e2a2aaaeb2bde857d | |
| parent | Linux 6.6-rc4 (diff) | |
| download | linux-2e89345764c6a87c778e776c0590bda07425f251.tar.xz linux-2e89345764c6a87c778e776c0590bda07425f251.zip | |
ACPI: PRM: Annotate struct prm_module_info with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct prm_module_info.
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci # [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/acpi/prmt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/prmt.c b/drivers/acpi/prmt.c index 7020584096bf..c78453c74ef5 100644 --- a/drivers/acpi/prmt.c +++ b/drivers/acpi/prmt.c @@ -69,7 +69,7 @@ struct prm_module_info { bool updatable; struct list_head module_list; - struct prm_handler_info handlers[]; + struct prm_handler_info handlers[] __counted_by(handler_count); }; static u64 efi_pa_va_lookup(u64 pa) |