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executor/usb: allow syz_usb_control_io args to be 0

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This commit is contained in:
Andrey Konovalov 2019-09-06 17:21:27 +02:00 committed by Andrey Konovalov
parent 4280382fb9
commit 2d7c71133a
2 changed files with 14 additions and 4 deletions
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9
executor/common_usb.h
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@ -418,8 +418,13 @@ struct vusb_responses {
static bool lookup_control_response(struct vusb_descriptors* descs, struct vusb_responses* resps,
struct usb_ctrlrequest* ctrl, char** response_data, uint32* response_length)
{
int descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]);
int resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]);
int descs_num = 0;
int resps_num = 0;
if (descs)
descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]);
if (resps)
resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]);
uint8 req = ctrl->bRequest;
uint8 req_type = ctrl->bRequestType & USB_TYPE_MASK;

9
pkg/csource/generated.go
View File

@ -2162,8 +2162,13 @@ struct vusb_responses {
static bool lookup_control_response(struct vusb_descriptors* descs, struct vusb_responses* resps,
struct usb_ctrlrequest* ctrl, char** response_data, uint32* response_length)
{
int descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]);
int resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]);
int descs_num = 0;
int resps_num = 0;
if (descs)
descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]);
if (resps)
resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]);
uint8 req = ctrl->bRequest;
uint8 req_type = ctrl->bRequestType & USB_TYPE_MASK;