Commit 52176603 authored Feb 09, 2017 by Dan Carpenter Committed by James Morris Feb 10, 2017

KEYS: Use memzero_explicit() for secret data



I don't think GCC has figured out how to optimize the memset() away, but
they might eventually so let's future proof this code a bit.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

parent 57cb17e7

security/keys/encrypted-keys/encrypted.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -985,7 +985,7 @@ static void encrypted_destroy(struct key *key)
		if (!epayload)
		return;

		memset(epayload->decrypted_data, 0, epayload->decrypted_datalen);
		memzero_explicit(epayload->decrypted_data, epayload->decrypted_datalen);
		kfree(key->payload.data[0]);
		}