From: Andrew Morton <akpm@linux-foundation.org>
To: David Howells <dhowells@redhat.com>
Cc: Waiman Long <longman@redhat.com>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-mm@kvack.org, keyrings@vger.kernel.org,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Joe Perches <joe@perches.com>,
Matthew Wilcox <willy@infradead.org>,
David Rientjes <rientjes@google.com>
Subject: Re: [PATCH v3] mm: Add kvfree_sensitive() for freeing sensitive data objects
Date: Tue, 5 May 2020 13:35:21 -0700 [thread overview]
Message-ID: <20200505133521.eb8901d0b92e09452191ab49@linux-foundation.org> (raw)
In-Reply-To: <694340.1586290917@warthog.procyon.org.uk>
On Tue, 07 Apr 2020 21:21:57 +0100 David Howells <dhowells@redhat.com> wrote:
> David Howells <dhowells@redhat.com> wrote:
>
> > > if (unlikely(key_data))
> > > - __kvzfree(key_data, key_data_len);
> > > + kvfree_sensitive(key_data, key_data_len);
> >
> > I think the if-statement is redundant.
>
> Ah - I see that you explicitly wanted to keep it.
Why's that?
> There's a good chance it'll get janitored at some point.
Indeed. Perhaps add a few little comments to explain the reasoning and
to keep the janitorial fingers away?
next prev parent reply other threads:[~2020-05-05 20:35 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-07 20:03 [PATCH v3] mm: Add kvfree_sensitive() for freeing sensitive data objects Waiman Long
2020-04-07 20:09 ` Linus Torvalds
2020-04-07 20:19 ` David Howells
2020-04-07 20:24 ` Waiman Long
2020-04-07 20:21 ` David Howells
2020-05-05 20:35 ` Andrew Morton [this message]
2020-05-06 1:29 ` Waiman Long
2020-04-07 20:31 ` Joe Perches
2020-04-07 20:45 ` Waiman Long
2020-04-07 21:01 ` Linus Torvalds
2020-04-07 21:24 ` Uladzislau Rezki
2020-04-07 21:30 ` Linus Torvalds
2020-04-07 22:12 ` Matthew Wilcox
2020-04-08 0:35 ` Joe Perches
2020-04-08 13:38 ` Jarkko Sakkinen
2020-05-01 23:22 ` Eric Biggers
2020-05-04 2:57 ` Waiman Long
2020-05-14 11:00 ` Balbir Singh
2020-05-14 12:00 ` Matthew Wilcox
2020-05-14 12:08 ` Joe Perches
2020-05-17 0:27 ` Balbir Singh
2020-05-17 0:44 ` Matthew Wilcox
2020-05-18 2:39 ` Waiman Long
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