Commit c3db467b authored by Kees Cook's avatar Kees Cook Committed by Jakub Kicinski
Browse files

cxgb4: Annotate struct clip_tbl 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 clip_tbl.

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



Cc: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Reviewed-by: default avatarGustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230929181149.3006432-2-keescook@chromium.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 3bbae5f1

drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h

+1 −1
Original line number Diff line number Diff line
@@ -29,7 +29,7 @@ struct clip_tbl { 
	atomic_t nfree;

	struct list_head ce_free_head;

	void *cl_list;

	struct list_head hash_list[];

	struct list_head hash_list[] __counted_by(clipt_size);

};



enum {