On 9/22/23 11:53, Kees Cook wrote:
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 da9062_regulators.
[1]
https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Support Opensource <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Mark Brown <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Reviewed-by: Gustavo A. R. Silva <[email protected]>
Thanks
--
Gustavo
---
drivers/regulator/da9062-regulator.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/regulator/da9062-regulator.c
b/drivers/regulator/da9062-regulator.c
index 1d354db0c1bd..e0c96f10e570 100644
--- a/drivers/regulator/da9062-regulator.c
+++ b/drivers/regulator/da9062-regulator.c
@@ -73,7 +73,7 @@ struct da9062_regulators {
int irq_ldo_lim;
unsigned n_regulators;
/* Array size to be defined during init. Keep at end. */
- struct da9062_regulator regulator[];
+ struct da9062_regulator regulator[]
__counted_by(n_regulators);
};
/* Regulator operations */
