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authorRoberto Sassu <roberto.sassu@polito.it>2011-03-17 12:48:50 +0100
committerAK <andi@firstfloor.org>2011-03-31 11:58:51 -0700
commit82c2780e98b244e76ee4ec346f08499409c370df (patch)
tree69c9989d5724a77abb0420627185448aa0831d08
parentd28a97ca224292508122da0cb92a321cc8b5bb4f (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> Signed-off-by: Andi Kleen <ak@linux.intel.com>
-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 89c5476506ef..d6e935541a0b 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1543,6 +1543,7 @@ 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);