From: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Date: Mon, 14 Jun 2010 16:58:22 +0000 (-0300)
Subject: TPM: ReadPubEK output struct fix
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=02a077c52ef7631275a79862ffd9f3dbe9d38bc2;p=linux-beck.git

TPM: ReadPubEK output struct fix

This patch adds a missing element of the ReadPubEK command output,
that prevents future overflow of this buffer when copying the
TPM output result into it.

Prevents a kernel panic in case the user tries to read the
pubek from sysfs.

Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---

diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 8e00b4ddd083..792868d24f2a 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -224,6 +224,7 @@ struct	tpm_readpubek_params_out {
 	u8	algorithm[4];
 	u8	encscheme[2];
 	u8	sigscheme[2];
+	__be32	paramsize;
 	u8	parameters[12]; /*assuming RSA*/
 	__be32	keysize;
 	u8	modulus[256];