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| author | Alexander Bulekov | 2021-03-01 20:35:30 +0100 |
|---|---|---|
| committer | Jason Wang | 2021-03-15 09:41:22 +0100 |
| commit | 37cee01784ff0df13e5209517e1b3594a5e792d1 (patch) | |
| tree | 9363c9838b916031178e5b0b336ddadf557798ed | |
| parent | cadence_gem: switch to use qemu_receive_packet() for loopback (diff) | |
| download | qemu-37cee01784ff0df13e5209517e1b3594a5e792d1.tar.gz qemu-37cee01784ff0df13e5209517e1b3594a5e792d1.tar.xz qemu-37cee01784ff0df13e5209517e1b3594a5e792d1.zip | |
lan9118: switch to use qemu_receive_packet() for loopback
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: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
| -rw-r--r-- | hw/net/lan9118.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c index abc796285a..6aff424cbe 100644 --- a/hw/net/lan9118.c +++ b/hw/net/lan9118.c @@ -680,7 +680,7 @@ static void do_tx_packet(lan9118_state *s) /* FIXME: Honor TX disable, and allow queueing of packets. */ if (s->phy_control & 0x4000) { /* This assumes the receive routine doesn't touch the VLANClient. */ - lan9118_receive(qemu_get_queue(s->nic), s->txp->data, s->txp->len); + qemu_receive_packet(qemu_get_queue(s->nic), s->txp->data, s->txp->len); } else { qemu_send_packet(qemu_get_queue(s->nic), s->txp->data, s->txp->len); } |