[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230922175432.work.709-kees@kernel.org>
Date: Fri, 22 Sep 2023 10:54:33 -0700
From: Kees Cook <keescook@...omium.org>
To: Giovanni Cabiddu <giovanni.cabiddu@...el.com>
Cc: Kees Cook <keescook@...omium.org>,
Herbert Xu <herbert@...dor.apana.org.au>,
"David S. Miller" <davem@...emloft.net>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Tom Rix <trix@...hat.com>, Adam Guerin <adam.guerin@...el.com>,
Lucas Segarra Fernandez <lucas.segarra.fernandez@...el.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
qat-linux@...el.com, linux-crypto@...r.kernel.org,
llvm@...ts.linux.dev, linux-kernel@...r.kernel.org,
linux-hardening@...r.kernel.org
Subject: [PATCH] crypto: qat: Annotate struct adf_fw_counters 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 adf_fw_counters.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Giovanni Cabiddu <giovanni.cabiddu@...el.com>
Cc: Herbert Xu <herbert@...dor.apana.org.au>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Nathan Chancellor <nathan@...nel.org>
Cc: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Tom Rix <trix@...hat.com>
Cc: Adam Guerin <adam.guerin@...el.com>
Cc: Lucas Segarra Fernandez <lucas.segarra.fernandez@...el.com>
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: qat-linux@...el.com
Cc: linux-crypto@...r.kernel.org
Cc: llvm@...ts.linux.dev
Signed-off-by: Kees Cook <keescook@...omium.org>
---
drivers/crypto/intel/qat/qat_common/adf_fw_counters.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/intel/qat/qat_common/adf_fw_counters.c b/drivers/crypto/intel/qat/qat_common/adf_fw_counters.c
index cb6e09ef5c9f..6abe4736eab8 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_fw_counters.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_fw_counters.c
@@ -34,7 +34,7 @@ struct adf_ae_counters {
struct adf_fw_counters {
u16 ae_count;
- struct adf_ae_counters ae_counters[];
+ struct adf_ae_counters ae_counters[] __counted_by(ae_count);
};
static void adf_fw_counters_parse_ae_values(struct adf_ae_counters *ae_counters, u32 ae,
--
2.34.1
Powered by blists - more mailing lists