From a7fde1c1706a93c304eb301cc290d71c9426493b Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 11 Dec 2018 08:26:49 +0100 Subject: usb-audio: ignore usb packages with wrong size usb packets with no payload (zero length) seem to happen in practice for whatever reason. Add a check and skip the packet then, otherwise we'll trigger an assert. Reported-by: Leonardo Soares Müller Signed-off-by: Gerd Hoffmann Reviewed-by: Philippe Mathieu-Daudé Message-id: 20181211072649.20700-1-kraxel@redhat.com --- hw/usb/dev-audio.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'hw/usb/dev-audio.c') diff --git a/hw/usb/dev-audio.c b/hw/usb/dev-audio.c index ee43e4914d..28ac7c5165 100644 --- a/hw/usb/dev-audio.c +++ b/hw/usb/dev-audio.c @@ -321,6 +321,9 @@ static int streambuf_put(struct streambuf *buf, USBPacket *p) if (!free) { return 0; } + if (p->iov.size != USBAUDIO_PACKET_SIZE) { + return 0; + } assert(free >= USBAUDIO_PACKET_SIZE); usb_packet_copy(p, buf->data + (buf->prod % buf->size), USBAUDIO_PACKET_SIZE); -- cgit v1.2.3-55-g7522