| Date | Fri, 30 Jul 2010 10:30:03 -0700 | From | Greg KH <> | Subject | [038/140] TPM: ReadPubEK output struct fix |
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2.6.33-stable review patch. If anyone has any objections, please let us know.
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From: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
commit 02a077c52ef7631275a79862ffd9f3dbe9d38bc2 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/char/tpm/tpm.h | 1 + 1 file changed, 1 insertion(+)
--- 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];
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