blob: 5fc27c6069b0b60561b6f49fd81d736991e2ea7f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
index bdfd38f..68b9981 100644 (file)
--- a/hw/net/pcnet.c
+++ b/hw/net/pcnet.c
@@ -1241,6 +1241,14 @@ static void pcnet_transmit(PCNetState *s)
}
bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
+
+ /* if multi-tmd packet outsizes s->buffer then skip it silently.
+ Note: this is not what real hw does */
+ if (s->xmit_pos + bcnt > sizeof(s->buffer)) {
+ s->xmit_pos = -1;
+ goto txdone;
+ }
+
s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
s->xmit_pos += bcnt;
|
