| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 56/71] tls: return -EBUSY if crypto_info is already set | Date | Mon, 29 Jan 2018 13:57:24 +0100 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Sabrina Dubroca <sd@queasysnail.net>
[ Upstream commit 877d17c79b66466942a836403773276e34fe3614 ]
do_tls_setsockopt_tx returns 0 without doing anything when crypto_info is already set. Silent failure is confusing for users.
Fixes: 3c4d7559159b ("tls: kernel TLS support") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/tls/tls_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -364,8 +364,10 @@ static int do_tls_setsockopt_tx(struct s crypto_info = &ctx->crypto_send; /* Currently we don't support set crypto info more than one time */ - if (TLS_CRYPTO_INFO_READY(crypto_info)) + if (TLS_CRYPTO_INFO_READY(crypto_info)) { + rc = -EBUSY; goto out; + } switch (tmp_crypto_info.cipher_type) { case TLS_CIPHER_AES_GCM_128: {
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