37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
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From: Jason Wang <jasowang@redhat.com>
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Date: Wed, 24 Feb 2021 12:57:40 +0800
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Subject: dp8393x: switch to use qemu_receive_packet() for loopback packet
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Git-commit: 331d2ac9ea307c990dc86e6493e8f0c48d14bb33
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This patch switches to use qemu_receive_packet() which can detect
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reentrancy and return early.
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This is intended to address CVE-2021-3416.
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Cc: Prasad J Pandit <ppandit@redhat.com>
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Cc: qemu-stable@nongnu.org
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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com
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Signed-off-by: Jason Wang <jasowang@redhat.com>
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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hw/net/dp8393x.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
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index 205c0decc535724de568023e9f23..533a8304d0bc4b7b8a7750389cc0 100644
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--- a/hw/net/dp8393x.c
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+++ b/hw/net/dp8393x.c
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@@ -506,7 +506,7 @@ static void dp8393x_do_transmit_packets(dp8393xState *s)
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s->regs[SONIC_TCR] |= SONIC_TCR_CRSL;
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if (nc->info->can_receive(nc)) {
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s->loopback_packet = 1;
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- nc->info->receive(nc, s->tx_buffer, tx_len);
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+ qemu_receive_packet(nc, s->tx_buffer, tx_len);
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}
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} else {
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/* Transmit packet */
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