6.12-stable review patch. If anyone has any objections, please let me know.
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From: Haoyu Li lihaoyu499@gmail.com
commit 3396995f9fb6bcbe0004a68118a22f98bab6e2b9 upstream.
With the new __counted_by annocation in ljca_gpio_packet, the "num" struct member must be set before accessing the "item" array. Failing to do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.
Fixes: 1034cc423f1b ("gpio: update Intel LJCA USB GPIO driver") Cc: stable@vger.kernel.org Signed-off-by: Haoyu Li lihaoyu499@gmail.com Link: https://lore.kernel.org/stable/20241203141451.342316-1-lihaoyu499%40gmail.co... Signed-off-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpio/gpio-ljca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-ljca.c b/drivers/gpio/gpio-ljca.c index d67b912d884d..c6c31e6146c7 100644 --- a/drivers/gpio/gpio-ljca.c +++ b/drivers/gpio/gpio-ljca.c @@ -82,9 +82,9 @@ static int ljca_gpio_config(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id, int ret;
mutex_lock(&ljca_gpio->trans_lock); + packet->num = 1; packet->item[0].index = gpio_id; packet->item[0].value = config | ljca_gpio->connect_mode[gpio_id]; - packet->num = 1;
ret = ljca_transfer(ljca_gpio->ljca, LJCA_GPIO_CONFIG, (u8 *)packet, struct_size(packet, item, packet->num), NULL, 0);