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authorYuanjun Gong <ruc_gongyuanjun@163.com>2023-07-17 16:49:02 +0200
committerDavid S. Miller <davem@davemloft.net>2023-07-19 13:27:09 +0200
commit02d84f3eb53a5be982b17c88410fa6c58806356b (patch)
tree8e039857aa17e726581e15773c866321ec78be1c /net/ipv4/ip_gre.c
parentdrivers:net: fix return value check in ocelot_fdma_receive_skb (diff)
downloadlinux-02d84f3eb53a5be982b17c88410fa6c58806356b.tar.xz
linux-02d84f3eb53a5be982b17c88410fa6c58806356b.zip
ipv4: ip_gre: fix return value check in erspan_fb_xmit()
goto err_free_skb if an unexpected result is returned by pskb_tirm() in erspan_fb_xmit(). Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv4/ip_gre.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 81a1cce1a7d1..914cc941af55 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -548,7 +548,8 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev)
goto err_free_skb;
if (skb->len > dev->mtu + dev->hard_header_len) {
- pskb_trim(skb, dev->mtu + dev->hard_header_len);
+ if (pskb_trim(skb, dev->mtu + dev->hard_header_len))
+ goto err_free_skb;
truncate = true;
}