Message ID | 20210503132915.2335822-5-kraxel@redhat.com |
---|---|
State | New |
Headers | show |
Series | usb: fix some memory allocation issues. | expand |
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 46212b1e695a..7acfb8137bc9 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -1568,6 +1568,11 @@ static int xhci_setup_packet(XHCITransfer *xfer) qemu_sglist_destroy(&xfer->sgl); return -1; } + if (xfer->packet.iov.size > ep->max_packet_size) { + usb_packet_unmap(&xfer->packet, &xfer->sgl); + qemu_sglist_destroy(&xfer->sgl); + return -1; + } DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", xfer->packet.pid, ep->dev->addr, ep->nr); return 0;
Make sure the usb packet size is within the bounds of the endpoint configuration. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- hw/usb/hcd-xhci.c | 5 +++++ 1 file changed, 5 insertions(+)