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-rw-r--r--net/ipv4/ah4.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index f2a71025a770..22377c8ff14b 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -270,6 +270,9 @@ static void ah_input_done(struct crypto_async_request *base, int err)
int ihl = ip_hdrlen(skb);
int ah_hlen = (ah->hdrlen + 2) << 2;
+ if (err)
+ goto out;
+
work_iph = AH_SKB_CB(skb)->tmp;
auth_data = ah_tmp_auth(work_iph, ihl);
icv = ah_tmp_icv(ahp->ahash, auth_data, ahp->icv_trunc_len);