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-rw-r--r--net/tls/tls_device.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index cc0256939eb6..96357060addc 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -628,14 +628,16 @@ static int tls_device_reencrypt(struct sock *sk, struct sk_buff *skb)
else
err = 0;
- copy = min_t(int, skb_pagelen(skb) - offset,
- rxm->full_len - TLS_CIPHER_AES_GCM_128_TAG_SIZE);
+ if (skb_pagelen(skb) > offset) {
+ copy = min_t(int, skb_pagelen(skb) - offset,
+ rxm->full_len - TLS_CIPHER_AES_GCM_128_TAG_SIZE);
- if (skb->decrypted)
- skb_store_bits(skb, offset, buf, copy);
+ if (skb->decrypted)
+ skb_store_bits(skb, offset, buf, copy);
- offset += copy;
- buf += copy;
+ offset += copy;
+ buf += copy;
+ }
skb_walk_frags(skb, skb_iter) {
copy = min_t(int, skb_iter->len,