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| author | Sabrina Dubroca <sd@queasysnail.net> | 2018-01-16 16:04:27 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-17 16:16:03 -0500 |
| commit | 877d17c79b66466942a836403773276e34fe3614 (patch) | |
| tree | b7fb010cc3eaa414f8518048a1d3e2ba107ec5ac /net/tls | |
| parent | cf6d43ef66f416282121f436ce1bee9a25199d52 (diff) | |
| download | linux-0-day-877d17c79b66466942a836403773276e34fe3614.tar.gz linux-0-day-877d17c79b66466942a836403773276e34fe3614.tar.xz | |
tls: return -EBUSY if crypto_info is already set
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>
Diffstat (limited to 'net/tls')
| -rw-r--r-- | net/tls/tls_main.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 7b7a70e22d909..8e9cbfd214233 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -367,8 +367,10 @@ static int do_tls_setsockopt_tx(struct sock *sk, char __user *optval, 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; + } rc = copy_from_user(crypto_info, optval, sizeof(*crypto_info)); if (rc) { |