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[PULL V2 08/20] msf2-mac: switch to use qemu_receive_packet() for loopba
From: |
Jason Wang |
Subject: |
[PULL V2 08/20] msf2-mac: switch to use qemu_receive_packet() for loopback |
Date: |
Mon, 15 Mar 2021 17:14:21 +0800 |
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.
This is intended to address CVE-2021-3416.
Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
hw/net/msf2-emac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/net/msf2-emac.c b/hw/net/msf2-emac.c
index 32ba9e8..3e62060 100644
--- a/hw/net/msf2-emac.c
+++ b/hw/net/msf2-emac.c
@@ -158,7 +158,7 @@ static void msf2_dma_tx(MSF2EmacState *s)
* R_CFG1 bit 0 is set.
*/
if (s->regs[R_CFG1] & R_CFG1_LB_EN_MASK) {
- nc->info->receive(nc, buf, size);
+ qemu_receive_packet(nc, buf, size);
} else {
qemu_send_packet(nc, buf, size);
}
--
2.7.4
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