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-rw-r--r--net/ipv4/esp4.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 45bb5b60b..203569500 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -275,7 +275,6 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
struct page *page;
struct sk_buff *trailer;
int tailen = esp->tailen;
- unsigned int allocsz;
/* this is non-NULL only with UDP Encapsulation */
if (x->encap) {
@@ -285,8 +284,8 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
return err;
}
- allocsz = ALIGN(skb->data_len + tailen, L1_CACHE_BYTES);
- if (allocsz > ESP_SKB_FRAG_MAXSIZE)
+ if (ALIGN(tailen, L1_CACHE_BYTES) > PAGE_SIZE ||
+ ALIGN(skb->data_len, L1_CACHE_BYTES) > PAGE_SIZE)
goto cow;
if (!skb_cloned(skb)) {