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| author | Dave Airlie <airlied@redhat.com> | 2017-11-02 12:40:41 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-11-02 12:40:41 +1000 |
| commit | 7a88cbd8d65d622c00bd76ba4ae1d893b292c91c (patch) | |
| tree | 826df7ac42ca13c33828d0142046186b91df686b /security/keys/encrypted-keys/encrypted.c | |
| parent | 0a4334c9e5405f836c46375c6e279cfdda7da6b5 (diff) | |
| parent | 0b07194bb55ed836c2cc7c22e866b87a14681984 (diff) | |
| download | kernel_replicant_linux-7a88cbd8d65d622c00bd76ba4ae1d893b292c91c.tar.gz kernel_replicant_linux-7a88cbd8d65d622c00bd76ba4ae1d893b292c91c.tar.bz2 kernel_replicant_linux-7a88cbd8d65d622c00bd76ba4ae1d893b292c91c.zip | |
Backmerge tag 'v4.14-rc7' into drm-next
Linux 4.14-rc7
Requested by Ben Skeggs for nouveau to avoid major conflicts,
and things were getting a bit conflicty already, esp around amdgpu
reverts.
Diffstat (limited to 'security/keys/encrypted-keys/encrypted.c')
| -rw-r--r-- | security/keys/encrypted-keys/encrypted.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c index 69855ba0d3b3..d92cbf9687c3 100644 --- a/security/keys/encrypted-keys/encrypted.c +++ b/security/keys/encrypted-keys/encrypted.c @@ -309,6 +309,13 @@ static struct key *request_user_key(const char *master_desc, const u8 **master_k down_read(&ukey->sem); upayload = user_key_payload_locked(ukey); + if (!upayload) { + /* key was revoked before we acquired its semaphore */ + up_read(&ukey->sem); + key_put(ukey); + ukey = ERR_PTR(-EKEYREVOKED); + goto error; + } *master_key = upayload->data; *master_keylen = upayload->datalen; error: @@ -847,7 +854,7 @@ static int encrypted_update(struct key *key, struct key_preparsed_payload *prep) size_t datalen = prep->datalen; int ret = 0; - if (test_bit(KEY_FLAG_NEGATIVE, &key->flags)) + if (key_is_negative(key)) return -ENOKEY; if (datalen <= 0 || datalen > 32767 || !prep->data) return -EINVAL; |