Git-commit:
e73adfbeec9d4e008630c814759052ed945c3fed
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>
Signed-off-by: Bruce Rogers <brogers@suse.com>
/* Send the packet somewhere */
if (s->phy_loop || (s->regs[GEM_NWCTRL] &
GEM_NWCTRL_LOCALLOOP)) {
- gem_receive(qemu_get_queue(s->nic), s->tx_packet,
- total_bytes);
+ qemu_receive_packet(qemu_get_queue(s->nic), s->tx_packet,
+ total_bytes);
} else {
qemu_send_packet(qemu_get_queue(s->nic), s->tx_packet,
total_bytes);