Commit e6f60c51 authored by Ameer Hamza's avatar Ameer Hamza Committed by Jakub Kicinski
Browse files

gve: fix for null pointer dereference. 



Avoid passing NULL skb to __skb_put() function call if
napi_alloc_skb() returns NULL.

Fixes: 37149e93 ("gve: Implement packet continuation for RX.")
Signed-off-by: default avatarAmeer Hamza <amhamza.mgc@gmail.com>
Link: https://lore.kernel.org/r/20211205183810.8299-1-amhamza.mgc@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 6ebe4b35

drivers/net/ethernet/google/gve/gve_utils.c

+3 −0
Original line number Diff line number Diff line
@@ -68,6 +68,9 @@ struct sk_buff *gve_rx_copy(struct net_device *dev, struct napi_struct *napi, 
		set_protocol = ctx->curr_frag_cnt == ctx->expected_frag_cnt - 1;

	} else {

		skb = napi_alloc_skb(napi, len);



		if (unlikely(!skb))

			return NULL;

		set_protocol = true;

	}

	__skb_put(skb, len);