From 141f12be09ac693e2384a7999f6782c7750c30a5 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 22 Sep 2023 10:54:33 -0700 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 Cc: Herbert Xu Cc: "David S. Miller" Cc: Nathan Chancellor Cc: Nick Desaulniers Cc: Tom Rix Cc: Adam Guerin Cc: Lucas Segarra Fernandez Cc: Andy Shevchenko Cc: qat-linux@intel.com Cc: linux-crypto@vger.kernel.org Cc: llvm@lists.linux.dev Signed-off-by: Kees Cook Reviewed-by: Gustavo A. R. Silva Acked-by: Giovanni Cabiddu Signed-off-by: Herbert Xu --- 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,