[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20231009011337.4037007-1-make_ruc2021@163.com>
Date: Mon, 9 Oct 2023 09:13:37 +0800
From: Ma Ke <make_ruc2021@....com>
To: steffen.klassert@...unet.com, herbert@...dor.apana.org.au,
davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com,
kuba@...nel.org, pabeni@...hat.com
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Ma Ke <make_ruc2021@....com>
Subject: [PATCH] net: ipv4: fix return value check in esp_remove_trailer
In esp_remove_trailer(), to avoid an unexpected result returned by
pskb_trim, we should check the return value of pskb_trim().
Signed-off-by: Ma Ke <make_ruc2021@....com>
---
net/ipv4/esp4.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 2be2d4922557..d18f0f092fe7 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -732,7 +732,9 @@ static inline int esp_remove_trailer(struct sk_buff *skb)
skb->csum = csum_block_sub(skb->csum, csumdiff,
skb->len - trimlen);
}
- pskb_trim(skb, skb->len - trimlen);
+ ret = pskb_trim(skb, skb->len - trimlen);
+ if (unlikely(ret))
+ return ret;
ret = nexthdr[1];
--
2.37.2
Powered by blists - more mailing lists