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29 lines
920 B
29 lines
920 B
From e556da0a2099573f82391c16477fba08584a7a12 Mon Sep 17 00:00:00 2001
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From: Imran Desai <imran.desai@intel.com>
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Date: Tue, 10 Mar 2020 09:15:55 -0700
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Subject: [PATCH] tpm2_policy.c: restrict policy digest size
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Fixes #1916
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Signed-off-by: Imran Desai <imran.desai@intel.com>
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---
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lib/tpm2_policy.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/lib/tpm2_policy.c b/lib/tpm2_policy.c
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index 6c352b2b41ae..01387ba01645 100644
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--- a/lib/tpm2_policy.c
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+++ b/lib/tpm2_policy.c
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@@ -163,7 +163,7 @@ tool_rc tpm2_policy_build_policyauthorize(ESYS_CONTEXT *ectx,
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bool result = true;
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TPM2B_DIGEST approved_policy = { .size = 0 };
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if (policy_digest_path) {
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- approved_policy.size = UINT16_MAX;
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+ approved_policy.size = sizeof(TPMU_HA);
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result = files_load_bytes_from_path(policy_digest_path,
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approved_policy.buffer, &approved_policy.size);
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}
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--
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2.31.0
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