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Enforced buffer boundaries for hid devices

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This commit is contained in:
szymonh 2021-09-13 22:56:25 +02:00
parent 43aac7074b
commit 2d6407e7a5
1 changed files with 2 additions and 2 deletions
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4
src/class/hid/hid_device.c
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@ -282,7 +282,7 @@ bool hidd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t
uint8_t const report_id = tu_u16_low(request->wValue);
uint8_t* report_buf = p_hid->epin_buf;
uint16_t req_len = request->wLength;
uint16_t req_len = tu_min16(request->wLength, CFG_TUD_HID_EP_BUFSIZE);
uint16_t xferlen = 0;
@ -314,7 +314,7 @@ bool hidd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t
uint8_t const report_id = tu_u16_low(request->wValue);
uint8_t const* report_buf = p_hid->epout_buf;
uint16_t report_len = request->wLength;
uint16_t report_len = tu_min16(request->wLength, CFG_TUD_HID_EP_BUFSIZE);
// If host request a specific Report ID, extract report ID in buffer before invoking callback
if ( (report_id != HID_REPORT_TYPE_INVALID) && (report_len > 1) && (report_id == report_buf[0]) )