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From:   David Howells <dhowells@redhat.com>
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Subject: Re: [PATCH v5 04/10] crypto: akcipher - new verify API for public key algorithms
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Date:   Thu, 28 Feb 2019 19:02:09 +0000
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| > It's not clear that sig->digest is guaranteed to be kmalloc memory.

Well, public_key_signature_free() will go bang if it's not kfree'able.

David