Commit d4843668 authored by Kees Cook's avatar Kees Cook Committed by Dipen Patel
Browse files

hte: Annotate struct hte_device 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 hte_device.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci



Cc: Dipen Patel <dipenp@nvidia.com>
Cc: timestamp@lists.linux.dev
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Reviewed-by: default avatarGustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: default avatarDipen Patel <dipenp@nvidia.com>
Reviewed-by: default avatarJustin Stitt <justinstitt@google.com>
Signed-off-by: default avatarDipen Patel <dipenp@nvidia.com>
parent 0bb80ecc

drivers/hte/hte.c

+1 −1
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ struct hte_device { 
	struct list_head list;

	struct hte_chip *chip;

	struct module *owner;

	struct hte_ts_info ei[];

	struct hte_ts_info ei[] __counted_by(nlines);

};



#ifdef CONFIG_DEBUG_FS