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authorJason Wang <jasowang@redhat.com>2021-02-24 12:57:40 +0800
committerJason Wang <jasowang@redhat.com>2021-03-15 16:41:22 +0800
commit331d2ac9ea307c990dc86e6493e8f0c48d14bb33 (patch)
tree53391ca6860c35f15d40711d9413af6418ea0a6e /hw
parent1caff0340f49c93d535c6558a5138d20d475315c (diff)
dp8393x: switch to use qemu_receive_packet() for loopback packet
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>
Diffstat (limited to 'hw')
-rw-r--r--hw/net/dp8393x.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index 205c0decc5..533a8304d0 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -506,7 +506,7 @@ static void dp8393x_do_transmit_packets(dp8393xState *s)
s->regs[SONIC_TCR] |= SONIC_TCR_CRSL;
if (nc->info->can_receive(nc)) {
s->loopback_packet = 1;
- nc->info->receive(nc, s->tx_buffer, tx_len);
+ qemu_receive_packet(nc, s->tx_buffer, tx_len);
}
} else {
/* Transmit packet */