From: Vadim Fedorenko vfedorenko@novek.ru
commit 635d9398178659d8ddba79dd061f9451cec0b4d1 upstream.
We cannot free record on any transient error because it leads to losing previos data. Check socket error to know whether record must be freed or not.
Fixes: d10523d0b3d7 ("net/tls: free the record on encryption error") Signed-off-by: Vadim Fedorenko vfedorenko@novek.ru Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/tls/tls_sw.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 34684b98c792..8c2763eb6aae 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -800,9 +800,10 @@ static int bpf_exec_tx_verdict(struct sk_msg *msg, struct sock *sk, psock = sk_psock_get(sk); if (!psock || !policy) { err = tls_push_record(sk, flags, record_type); - if (err && err != -EINPROGRESS) { + if (err && sk->sk_err == EBADMSG) { *copied -= sk_msg_free(sk, msg); tls_free_open_rec(sk); + err = -sk->sk_err; } if (psock) sk_psock_put(sk, psock); @@ -828,9 +829,10 @@ static int bpf_exec_tx_verdict(struct sk_msg *msg, struct sock *sk, switch (psock->eval) { case __SK_PASS: err = tls_push_record(sk, flags, record_type); - if (err && err != -EINPROGRESS) { + if (err && sk->sk_err == EBADMSG) { *copied -= sk_msg_free(sk, msg); tls_free_open_rec(sk); + err = -sk->sk_err; goto out_err; } break;