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-rw-r--r--hw/net/cadence_gem.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c
index e513d9d5ba..0346f3e335 100644
--- a/hw/net/cadence_gem.c
+++ b/hw/net/cadence_gem.c
@@ -867,6 +867,14 @@ static void gem_transmit(CadenceGEMState *s)
break;
}
+ if (tx_desc_get_length(desc) > sizeof(tx_packet) - (p - tx_packet)) {
+ DB_PRINT("TX descriptor @ 0x%x too large: size 0x%x space 0x%x\n",
+ (unsigned)packet_desc_addr,
+ (unsigned)tx_desc_get_length(desc),
+ sizeof(tx_packet) - (p - tx_packet));
+ break;
+ }
+
/* Gather this fragment of the packet from "dma memory" to our contig.
* buffer.
*/