| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 28/57] KEYS: Fix an error code in request_master_key() | Date | Thu, 13 Jul 2017 17:42:43 +0200 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter <dan.carpenter@oracle.com>
commit 57cb17e764ba0aaa169d07796acce54ccfbc6cae upstream.
This function has two callers and neither are able to handle a NULL return. Really, -EINVAL is the correct thing return here anyway. This fixes some static checker warnings like:
security/keys/encrypted-keys/encrypted.c:709 encrypted_key_decrypt() error: uninitialized symbol 'master_key'.
Fixes: 7e70cb497850 ("keys: add new key-type encrypted") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- security/keys/encrypted-keys/encrypted.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/security/keys/encrypted-keys/encrypted.c +++ b/security/keys/encrypted-keys/encrypted.c @@ -428,7 +428,7 @@ static int init_blkcipher_desc(struct bl static struct key *request_master_key(struct encrypted_key_payload *epayload, const u8 **master_key, size_t *master_keylen) { - struct key *mkey = NULL; + struct key *mkey = ERR_PTR(-EINVAL); if (!strncmp(epayload->master_desc, KEY_TRUSTED_PREFIX, KEY_TRUSTED_PREFIX_LEN)) {
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