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authorMa Ke <make_ruc2021@163.com>2023-10-07 08:59:53 +0800
committerSteffen Klassert <steffen.klassert@secunet.com>2023-10-10 09:55:35 +0200
commitdad4e491e30b20f4dc615c9da65d2142d703b5c2 (patch)
treebe4e499190041579c228129658e00034d31f8636 /net/ipv6/esp6.c
parentcc9b364bb1d58d3dae270c7a931a8cc717dc2b3b (diff)
net: ipv6: 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@163.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv6/esp6.c')
-rw-r--r--net/ipv6/esp6.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index fddd0cbdede1..e023d29e919c 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -770,7 +770,9 @@ 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];