| Message ID | 1420626584-25333-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 3e6ef4b1fb46..f87223056696 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -709,7 +709,7 @@ static int crypt_iv_tcw_whitening(struct crypt_config *cc, for (i = 0; i < ((1 << SECTOR_SHIFT) / 8); i++) crypto_xor(data + i * 8, buf, 8); out: - memset(buf, 0, sizeof(buf)); + memzero_explicit(buf, sizeof(buf)); return r; }
This is a note to let you know that I have just added a patch titled dm crypt: use memzero_explicit for on-stack buffer to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.16.y-queue This patch is scheduled to be released in version 3.16.7-ckt4. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.16.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From bcf0e0fe19cb85a6c31c94141c9a669a1b662e5c Mon Sep 17 00:00:00 2001 From: Milan Broz <gmazyland@gmail.com> Date: Sat, 22 Nov 2014 09:36:04 +0100 Subject: dm crypt: use memzero_explicit for on-stack buffer commit 1a71d6ffe18c0d0f03fc8531949cc8ed41d702ee upstream. Use memzero_explicit to cleanup sensitive data allocated on stack to prevent the compiler from optimizing and removing memset() calls. Signed-off-by: Milan Broz <gmazyland@gmail.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/md/dm-crypt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.1.4