From: Johan Hovold <johan@xxxxxxxxxx>
commit 47830c1127ef166af787caf2f871f23089610a7f upstream.
Since moving the message buffers off the stack, the dynamically
allocated get-prop-descriptor request buffer is incorrectly sized due to
using the pointer rather than request-struct size when creating the
operation.
Fortunately, the pointer size is always larger than this one-byte
request, but this could still cause trouble on the remote end due to the
unexpected message size.
Fixes: 9d15134d067e ("greybus: power_supply: rework get descriptors")
Cc: stable <stable@xxxxxxxxxxxxxxx> # 4.9
Cc: Rui Miguel Silva <rui.silva@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Reviewed-by: Rui Miguel Silva <rmfrfs@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/greybus/power_supply.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/staging/greybus/power_supply.c
+++ b/drivers/staging/greybus/power_supply.c
@@ -521,7 +521,7 @@ static int gb_power_supply_prop_descript
op = gb_operation_create(connection,
GB_POWER_SUPPLY_TYPE_GET_PROP_DESCRIPTORS,
- sizeof(req), sizeof(*resp) + props_count *
+ sizeof(*req), sizeof(*resp) + props_count *
sizeof(struct gb_power_supply_props_desc),
GFP_KERNEL);
if (!op)
