提交 e2f9dc3b 编写于 作者: E Eric Dumazet 提交者: David S. Miller

net: avoid NULL deref in napi_get_frags()

napi_alloc_skb() can return NULL.
We should not crash should this happen.

Fixes: 93f93a44 ("net: move skb_mark_napi_id() into core networking stack")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 b3d39a88
......@@ -4390,8 +4390,10 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi)
if (!skb) {
skb = napi_alloc_skb(napi, GRO_MAX_HEAD);
napi->skb = skb;
skb_mark_napi_id(skb, napi);
if (skb) {
napi->skb = skb;
skb_mark_napi_id(skb, napi);
}
}
return skb;
}
......
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