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systemd/SOURCES/0541-tpm2-replace-magic-num...

29 lines
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From 66e049a96b49cfa9b2be4d4c1fc39be6bdf68867 Mon Sep 17 00:00:00 2001
From: Dan Streetman <ddstreet@ieee.org>
Date: Thu, 8 Jun 2023 14:06:46 -0400
Subject: [PATCH] tpm2: replace magic number in hmac_sensitive initialization
Instead of setting hmac_sensitive.sensitive.data.size to '32' use the actual
hash size as set in the hmac_template.
(cherry picked from commit 180444b8851a8654771361b1494b5db286d8724e)
Related: RHEL-16182
---
src/shared/tpm2-util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/shared/tpm2-util.c b/src/shared/tpm2-util.c
index 12a6036b1d..f7940bcf2e 100644
--- a/src/shared/tpm2-util.c
+++ b/src/shared/tpm2-util.c
@@ -2964,7 +2964,7 @@ int tpm2_seal(const char *device,
TPM2B_SENSITIVE_CREATE hmac_sensitive = {
.size = sizeof(hmac_sensitive.sensitive),
- .sensitive.data.size = 32,
+ .sensitive.data.size = hmac_template.publicArea.unique.keyedHash.size,
};
CLEANUP_ERASE(hmac_sensitive);