iscsi: ensure RNG is seeded before use
authorJason A. Donenfeld <Jason@zx2c4.com>
Thu, 8 Jun 2017 02:34:26 +0000 (22:34 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Tue, 20 Jun 2017 02:06:28 +0000 (22:06 -0400)
commit6787ab81b29115b6d2e7d17fe8a8017da66197d6
treec926aac68602cbf76c6aa121fcacf5902cfc749f
parent51b0817b0d23d51223575eff14629b3602a93cd4
iscsi: ensure RNG is seeded before use

It's not safe to use weak random data here, especially for the challenge
response randomness. Since we're always in process context, it's safe to
simply wait until we have enough randomness to carry out the
authentication correctly.

While we're at it, we clean up a small memleak during an error
condition.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Chris Leech <cleech@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
drivers/target/iscsi/iscsi_target_auth.c
drivers/target/iscsi/iscsi_target_login.c