diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-15 13:09:56 -0700 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2023-11-01 11:28:28 +0000 |
| commit | a29feca113687cc691fe9f0f23652fafbafddc90 (patch) | |
| tree | ee71526d18a6dedf98e184100beab5ea3f4920c0 | |
| parent | 679cec1809b4140add538f28638546ea2f5c8959 (diff) | |
leds: el15203000: Annotate struct el15203000 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 el15203000.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230915200955.never.871-kees@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | drivers/leds/leds-el15203000.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/leds/leds-el15203000.c b/drivers/leds/leds-el15203000.c index 7e7b617bcd56..d40194a3029f 100644 --- a/drivers/leds/leds-el15203000.c +++ b/drivers/leds/leds-el15203000.c @@ -80,7 +80,7 @@ struct el15203000 { struct spi_device *spi; unsigned long delay; size_t count; - struct el15203000_led leds[]; + struct el15203000_led leds[] __counted_by(count); }; #define to_el15203000_led(d) container_of(d, struct el15203000_led, ldev) |