diff options
| author | Roberto Sassu <roberto.sassu@huawei.com> | 2020-04-14 10:01:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-22 09:32:58 +0200 |
| commit | e445da30b12a4fc4591b5c3ac7647f25ec828446 (patch) | |
| tree | 7d8ea084f86030ac22ca483624bf1c470aab0e0b /security | |
| parent | a095fc2be7475e49ef41aa7b515196ee163b5729 (diff) | |
evm: Fix possible memory leak in evm_calc_hmac_or_hash()
commit 0c4395fb2aa77341269ea619c5419ea48171883f upstream.
Don't immediately return if the signature is portable and security.ima is
not present. Just set error so that memory allocated is freed before
returning from evm_calc_hmac_or_hash().
Fixes: 50b977481fce9 ("EVM: Add support for portable signature format")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/evm/evm_crypto.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c index 764b896cd628..168c3b78ac47 100644 --- a/security/integrity/evm/evm_crypto.c +++ b/security/integrity/evm/evm_crypto.c @@ -241,7 +241,7 @@ static int evm_calc_hmac_or_hash(struct dentry *dentry, /* Portable EVM signatures must include an IMA hash */ if (type == EVM_XATTR_PORTABLE_DIGSIG && !ima_present) - return -EPERM; + error = -EPERM; out: kfree(xattr_value); kfree(desc); |