On Tue, Sep 25, 2018 at 03:23:27PM +0800, Jason Wang wrote:
There should not be a reason for passing a packet size greater than
INT_MAX. It's usually a hint of bug somewhere, so ignore packet size
greater than INT_MAX in qemu_deliver_packet_iov()
CC: address@hidden
Reported-by: Daniel Shapira <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
---
net/net.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/net/net.c b/net/net.c
index fd8efebfdb..df216e3811 100644
--- a/net/net.c
+++ b/net/net.c
@@ -712,10 +712,15 @@ ssize_t qemu_deliver_packet_iov(NetClientState *sender,
void *opaque)
{
NetClientState *nc = opaque;
+ size_t size = iov_size(iov, iovcnt);
int ret;
This adds a useless iov scan on the good path.
Can't be good for performance...