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chelsio/chtls: fix tls record info to user

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chtls_pt_recvmsg() receives a skb with tls header and subsequent
skb with data, need to finalize the data copy whenever next skb
with tls header is available. but here current tls header is
overwritten by next available tls header, ends up corrupting
user buffer data. fixing it by finalizing current record whenever
next skb contains tls header.

v1->v2:
- Improved commit message.

Fixes: 17a7d24aa8 ("crypto: chtls - generic handling of data and hdr")
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Link: https://lore.kernel.org/r/20201022190556.21308-1-vinay.yadav@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vinay Kumar Yadav 2020-10-23 00:35:57 +05:30 committed by Jakub Kicinski
parent df833050cc
commit 4f3391ce8f
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
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@ -1585,6 +1585,7 @@ skip_copy:
tp->urg_data = 0;
if ((avail + offset) >= skb->len) {
struct sk_buff *next_skb;
if (ULP_SKB_CB(skb)->flags & ULPCB_FLAG_TLS_HDR) {
tp->copied_seq += skb->len;
hws->rcvpld = skb->hdr_len;
@ -1595,8 +1596,10 @@ skip_copy:
chtls_free_skb(sk, skb);
buffers_freed++;
hws->copied_seq = 0;
if (copied >= target &&
!skb_peek(&sk->sk_receive_queue))
next_skb = skb_peek(&sk->sk_receive_queue);
if (copied >= target && !next_skb)
break;
if (ULP_SKB_CB(next_skb)->flags & ULPCB_FLAG_TLS_HDR)
break;
}
} while (len > 0);