diff options
| author | Alexander Bulekov <alxndr@bu.edu> | 2021-02-26 13:47:53 -0500 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2021-03-15 16:41:22 +0800 |
| commit | 5311fb805a4403bba024e83886fa0e7572265de4 (patch) | |
| tree | a028a241cf8ff5ecc6b2550fb4c71ca3ee7da009 | |
| parent | 8c552542b81e56ff532dd27ec6e5328954bdda73 (diff) | |
| download | qemu-5311fb805a4403bba024e83886fa0e7572265de4.zip qemu-5311fb805a4403bba024e83886fa0e7572265de4.tar.gz qemu-5311fb805a4403bba024e83886fa0e7572265de4.tar.bz2 | |
rtl8139: 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
Buglink: https://bugs.launchpad.net/qemu/+bug/1910826
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/rtl8139.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c index 4675ac8..90b4fc6 100644 --- a/hw/net/rtl8139.c +++ b/hw/net/rtl8139.c @@ -1795,7 +1795,7 @@ static void rtl8139_transfer_frame(RTL8139State *s, uint8_t *buf, int size, } DPRINTF("+++ transmit loopback mode\n"); - rtl8139_do_receive(qemu_get_queue(s->nic), buf, size, do_interrupt); + qemu_receive_packet(qemu_get_queue(s->nic), buf, size); if (iov) { g_free(buf2); |