This is a note to let you know that I've just added the patch titled
crypto: keywrap - memzero the correct memory
to the 4.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-keywrap-memzero-the-correct-memory.patch
and it can be found in the queue-4.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2b8b28fd232233c22fb61009dd8b0587390d2875 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Sat, 30 Jan 2016 17:38:28 +0300
Subject: crypto: keywrap - memzero the correct memory
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
commit 2b8b28fd232233c22fb61009dd8b0587390d2875 upstream.
We're clearing the wrong memory. The memory corruption is likely
harmless because we weren't going to use that stack memory again but not
zeroing is a potential information leak.
Fixes: e28facde3c39 ('crypto: keywrap - add key wrapping block chaining mode')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Stephan Mueller <smueller@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
crypto/keywrap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/crypto/keywrap.c
+++ b/crypto/keywrap.c
@@ -212,7 +212,7 @@ static int crypto_kw_decrypt(struct blkc
SEMIBSIZE))
ret = -EBADMSG;
- memzero_explicit(&block, sizeof(struct crypto_kw_block));
+ memzero_explicit(block, sizeof(struct crypto_kw_block));
return ret;
}
@@ -297,7 +297,7 @@ static int crypto_kw_encrypt(struct blkc
/* establish the IV for the caller to pick up */
memcpy(desc->info, block->A, SEMIBSIZE);
- memzero_explicit(&block, sizeof(struct crypto_kw_block));
+ memzero_explicit(block, sizeof(struct crypto_kw_block));
return 0;
}
Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are
queue-4.5/ncr5380-correctly-clear-command-pointers-and-lists-after-bus-reset.patch
queue-4.5/crypto-keywrap-memzero-the-correct-memory.patch
queue-4.5/edac-amd64_edac-shift-wrapping-issue-in-f1x_get_norm_dct_addr.patch
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