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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 13:02:00 -0700
commita0d088491fdbf655fde5b27a6a4d53f7495a8a11 (patch)
treeea24f3bc390387783f236cdf326471c18cdba8ce /fs
parenteb7ad98797ba117b37c07517793e836ac58f33c8 (diff)
downloadlinux-linaro-android-a0d088491fdbf655fde5b27a6a4d53f7495a8a11.tar.gz
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')
-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 c1436cff6f2..4feb78c2365 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -1563,6 +1563,7 @@ 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);