A limit is also placed in vnt_tx_context of MAX_TOTAL_SIZE_WITH_ALL_HEADERS
limiting size.
Signed-off-by: Malcolm Priestley <tvboxspy@xxxxxxxxx>
---
drivers/staging/vt6656/device.h | 1 -
drivers/staging/vt6656/rxtx.c | 3 ---
drivers/staging/vt6656/usbpipe.c | 5 +++++
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 074b98dfac91..08294b21c4e9 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -250,7 +250,6 @@ struct vnt_usb_send_context {
u8 pkt_type;
u8 need_ack;
bool in_use;
- unsigned char data[MAX_TOTAL_SIZE_WITH_ALL_HEADERS];
};
/*
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index cf194c95df03..8f9904c8045c 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -73,9 +73,6 @@ static struct vnt_usb_send_context
context = priv->tx_context[ii];
if (!context->in_use) {
context->in_use = true;
- memset(context->data, 0,
- MAX_TOTAL_SIZE_WITH_ALL_HEADERS);
-
context->hdr = NULL;
return context;
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index 904645fa0eb0..43f1ef32a9ce 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -463,6 +463,11 @@ int vnt_tx_context(struct vnt_private *priv,
return -ENODEV;
}
+ if (context->buf_len > MAX_TOTAL_SIZE_WITH_ALL_HEADERS) {
+ context->in_use = false;
+ return -E2BIG;
+ }
+
usb_fill_bulk_urb(urb,
priv->usb,
usb_sndbulkpipe(priv->usb, 3),
--
2.25.1
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