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| author | Milan Broz <gmazyland@gmail.com> | 2023-10-03 12:02:09 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-10-13 08:16:08 -0600 |
| commit | 4eaf0932c69bdc56d2c2af30404f9c918b1f6295 (patch) | |
| tree | b7ba155f110f0ad46ac4802e116589c338d5202b /block/sed-opal.c | |
| parent | 1364a3c391aedfeb32aa025303ead3d7c91cdf9d (diff) | |
| download | lwn-4eaf0932c69bdc56d2c2af30404f9c918b1f6295.tar.gz lwn-4eaf0932c69bdc56d2c2af30404f9c918b1f6295.zip | |
block: Fix regression in sed-opal for a saved key.
The commit 3bfeb61256643281ac4be5b8a57e9d9da3db4335
introduced the use of keyring for sed-opal.
Unfortunately, there is also a possibility to save
the Opal key used in opal_lock_unlock().
This patch switches the order of operation, so the cached
key is used instead of failure for opal_get_key.
The problem was found by the cryptsetup Opal test recently
added to the cryptsetup tree.
Fixes: 3bfeb6125664 ("block: sed-opal: keyring support for SED keys")
Tested-by: Ondrej Kozina <okozina@redhat.com>
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Link: https://lore.kernel.org/r/20231003100209.380037-1-gmazyland@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/sed-opal.c')
| -rw-r--r-- | block/sed-opal.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/block/sed-opal.c b/block/sed-opal.c index 6d7f25d1711b..04f38a3f5d95 100644 --- a/block/sed-opal.c +++ b/block/sed-opal.c @@ -2888,12 +2888,11 @@ static int opal_lock_unlock(struct opal_dev *dev, if (lk_unlk->session.who > OPAL_USER9) return -EINVAL; - ret = opal_get_key(dev, &lk_unlk->session.opal_key); - if (ret) - return ret; mutex_lock(&dev->dev_lock); opal_lock_check_for_saved_key(dev, lk_unlk); - ret = __opal_lock_unlock(dev, lk_unlk); + ret = opal_get_key(dev, &lk_unlk->session.opal_key); + if (!ret) + ret = __opal_lock_unlock(dev, lk_unlk); mutex_unlock(&dev->dev_lock); return ret; |