32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 1313d27fc347633d0cf6fc2ff8cbe17a740dd658 Mon Sep 17 00:00:00 2001
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From: Li Qiang <liqiang6-s@360.cn>
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Date: Thu, 11 Aug 2016 00:42:20 +0530
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Subject: [PATCH 2/3] net: vmxnet: initialise local tx descriptor
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In Vmxnet3 device emulator while processing transmit(tx) queue,
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when it reaches end of packet, it calls vmxnet3_complete_packet.
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In that local 'txcq_descr' object is not initialised, which could
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leak host memory bytes a guest.
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Reported-by: Li Qiang <liqiang6-s@360.cn>
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Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
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---
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hw/net/vmxnet3.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
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index 90f6943..92f6af9 100644
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--- a/hw/net/vmxnet3.c
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+++ b/hw/net/vmxnet3.c
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@@ -531,6 +531,7 @@ static void vmxnet3_complete_packet(VMXNET3State *s, int qidx, uint32_t tx_ridx)
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VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring);
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+ memset(&txcq_descr, 0, sizeof(txcq_descr));
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txcq_descr.txdIdx = tx_ridx;
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txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring);
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--
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2.1.4
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