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tls: reset the crypto info if copy_from_user fails 

copy_from_user could copy some partial information, as a result
TLS_CRYPTO_INFO_READY(crypto_info) could be true while crypto_info is
using uninitialzed data.

This patch resets crypto_info when copy_from_user fails.

fixes: 3c4d755915 ("tls: kernel TLS support")
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Boris Pismenny 2018-02-14 10:46:07 +02:00 committed by David S. Miller
parent a1dfa6812b
commit 257082e6ae
1 changed files with 1 additions and 1 deletions
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2
net/tls/tls_main.c
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@ -376,7 +376,7 @@ static int do_tls_setsockopt_tx(struct sock *sk, char __user *optval,
rc = copy_from_user(crypto_info, optval, sizeof(*crypto_info));
if (rc) {
rc = -EFAULT;
goto out;
goto err_crypto_info;
}
/* check version */