From: Li Qiang <[email protected]> In Vmxnet3 device emulator while processing transmit(tx) queue, when it reaches end of packet, it calls vmxnet3_complete_packet. In that local 'txcq_descr' object is not initialised, which could leak host memory bytes a guest.
Reported-by: Li Qiang <[email protected]> Signed-off-by: Prasad J Pandit <[email protected]> Reviewed-by: Dmitry Fleytman <[email protected]> Signed-off-by: Jason Wang <[email protected]> --- hw/net/vmxnet3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c index 90f6943..92f6af9 100644 --- a/hw/net/vmxnet3.c +++ b/hw/net/vmxnet3.c @@ -531,6 +531,7 @@ static void vmxnet3_complete_packet(VMXNET3State *s, int qidx, uint32_t tx_ridx) VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring); + memset(&txcq_descr, 0, sizeof(txcq_descr)); txcq_descr.txdIdx = tx_ridx; txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring); -- 2.7.4
