| Message ID | 20201022190556.21308-1-vinay.yadav@chelsio.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [net,v2] chelsio/chtls: fix tls record info to user | expand |
On Fri, 23 Oct 2020 00:35:57 +0530 Vinay Kumar Yadav wrote: > 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: 17a7d24aa89d ("crypto: chtls - generic handling of data and hdr") > Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com> Applied.
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c index 9fb5ca6682ea..a5dcc576ba3c 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c @@ -1585,6 +1585,7 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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; @@ -1595,9 +1596,12 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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);
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: 17a7d24aa89d ("crypto: chtls - generic handling of data and hdr") Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com> --- .../net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)