mirror of https://github.com/proxmox/mirror_qemu
tx_pkt: switch to use qemu_receive_packet_iov() for loopback
This patch switches to use qemu_receive_receive_iov() 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>master
parent
8c92060d3c
commit
8c552542b8
|
@ -553,7 +553,7 @@ static inline void net_tx_pkt_sendv(struct NetTxPkt *pkt,
|
||||||
NetClientState *nc, const struct iovec *iov, int iov_cnt)
|
NetClientState *nc, const struct iovec *iov, int iov_cnt)
|
||||||
{
|
{
|
||||||
if (pkt->is_loopback) {
|
if (pkt->is_loopback) {
|
||||||
nc->info->receive_iov(nc, iov, iov_cnt);
|
qemu_receive_packet_iov(nc, iov, iov_cnt);
|
||||||
} else {
|
} else {
|
||||||
qemu_sendv_packet(nc, iov, iov_cnt);
|
qemu_sendv_packet(nc, iov, iov_cnt);
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue