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authorRoberto Sassu <roberto.sassu@polito.it>2011-03-17 12:48:50 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-04-14 16:53:21 -0700
commita82a276bdb44a3b48e8f2b8dce457073c5f63123 (patch)
tree1d318bd46ad9ff8db78576b4c3edcdb54cf2ce29 /fs/ecryptfs
parentb6ec40927010e25d9fc5e432d4ca963f9e1fb31a (diff)
eCryptfs: ecryptfs_keyring_auth_tok_for_sig() bug fix
commit 1821df040ac3cd6a57518739f345da6d50ea9d3f upstream. The pointer '(*auth_tok_key)' is set to NULL in case request_key() fails, in order to prevent its use by functions calling ecryptfs_keyring_auth_tok_for_sig(). Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/ecryptfs')
-rw-r--r--fs/ecryptfs/keystore.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index a0a7847567e9..aa2480a33638 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1542,6 +1542,7 @@ int ecryptfs_keyring_auth_tok_for_sig(struct key **auth_tok_key,
printk(KERN_ERR "Could not find key with description: [%s]\n",
sig);
rc = process_request_key_err(PTR_ERR(*auth_tok_key));
+ (*auth_tok_key) = NULL;
goto out;
}
(*auth_tok) = ecryptfs_get_key_payload_data(*auth_tok_key);