[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20231029230057.792930-3-sashal@kernel.org>
Date: Sun, 29 Oct 2023 19:00:36 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Ma Ke <make_ruc2021@....com>,
Steffen Klassert <steffen.klassert@...unet.com>,
Sasha Levin <sashal@...nel.org>, davem@...emloft.net,
dsahern@...nel.org, edumazet@...gle.com, kuba@...nel.org,
pabeni@...hat.com, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 03/13] net: ipv6: fix return value check in esp_remove_trailer
From: Ma Ke <make_ruc2021@....com>
[ Upstream commit dad4e491e30b20f4dc615c9da65d2142d703b5c2 ]
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>
Signed-off-by: Steffen Klassert <steffen.klassert@...unet.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
net/ipv6/esp6.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index b64791d3b0f81..a1cdb43e72167 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -506,7 +506,9 @@ 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];
--
2.42.0
Powered by blists - more mailing lists