Re: [PATHv2 2/9] net: sandbox: fix NULL pointer derefences

[Sean Anderson]

On 12/25/23 10:39, Maxim Uvarov wrote:

Add additional checks for NULL pointers.

Signed-off-by: Maxim Uvarov <maxim.uva...@linaro.org>
---
  drivers/net/sandbox.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/drivers/net/sandbox.c b/drivers/net/sandbox.c
index 13022addb6..d91935e032 100644
--- a/drivers/net/sandbox.c
+++ b/drivers/net/sandbox.c
@@ -65,6 +65,9 @@ int sandbox_eth_arp_req_to_reply(struct udevice *dev, void 
*packet,
        struct ethernet_hdr *eth_recv;
        struct arp_hdr *arp_recv;

+ if (!priv)

+               return -EAGAIN;
+

When can priv be NULL?

--Sean

        if (ntohs(eth->et_protlen) != PROT_ARP)
                return -EAGAIN;