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Subject[PATCH 4.19 17/24] net: Properly unlink GRO packets on overflow.
Date
4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "David S. Miller" <davem@davemloft.net>

[ Upstream commti ece23711dd956cd5053c9cb03e9fe0668f9c8894 ]

Just like with normal GRO processing, we have to initialize
skb->next to NULL when we unlink overflow packets from the
GRO hash lists.

Fixes: d4546c2509b1 ("net: Convert GRO SKB handling to list_head.")
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/core/dev.c | 1 +
1 file changed, 1 insertion(+)

--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5431,6 +5431,7 @@ static void gro_flush_oldest(struct list
* SKB to the chain.
*/
list_del(&oldest->list);
+ oldest->next = NULL;
napi_gro_complete(oldest);
}


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