diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-02-22 01:12:47 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-02-22 01:12:47 -0300 |
| commit | 6d461a4fe7896faa1aec5a5417888cf179e46b9f (patch) | |
| tree | 2e0f1a0b7a5418189c8d53592d33a44d0b356fc9 /fs/ext4 | |
| parent | 5c545e1fb127a4b11ddc5f1a5ed066b853dd1a1a (diff) | |
Linux-libre 4.4.2-gnupck-4.4.2-gnu
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/crypto_key.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ext4/crypto_key.c b/fs/ext4/crypto_key.c index c5882b36e..9a16d1e75 100644 --- a/fs/ext4/crypto_key.c +++ b/fs/ext4/crypto_key.c @@ -213,9 +213,11 @@ retry: res = -ENOKEY; goto out; } + down_read(&keyring_key->sem); ukp = user_key_payload(keyring_key); if (ukp->datalen != sizeof(struct ext4_encryption_key)) { res = -EINVAL; + up_read(&keyring_key->sem); goto out; } master_key = (struct ext4_encryption_key *)ukp->data; @@ -226,10 +228,12 @@ retry: "ext4: key size incorrect: %d\n", master_key->size); res = -ENOKEY; + up_read(&keyring_key->sem); goto out; } res = ext4_derive_key_aes(ctx.nonce, master_key->raw, raw_key); + up_read(&keyring_key->sem); if (res) goto out; got_key: |