From: Stefan Berger <stefanb@linux.vnet.ibm.com>
Date: Mon, 30 Mar 2020 11:55:56 +0000 (-0400)
Subject: tcgbios: Fix the vendorInfoSize to be of type u8
X-Git-Tag: rel-1.14.0~30
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=adaf988b227533cf1cbbac84de17d8f07be81833;p=seabios.git

tcgbios: Fix the vendorInfoSize to be of type u8

The vendorInfoSize is a u8 rather than a u32.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---

diff --git a/src/tcgbios.c b/src/tcgbios.c
index cc3a51f..6a3a613 100644
--- a/src/tcgbios.c
+++ b/src/tcgbios.c
@@ -287,7 +287,7 @@ tpm20_write_EfiSpecIdEventStruct(void)
 
         int event_size = offsetof(struct TCG_EfiSpecIdEventStruct
                                   , digestSizes[count+1]);
-        if (event_size > sizeof(event) - sizeof(u32)) {
+        if (event_size > sizeof(event) - sizeof(u8)) {
             dprintf(DEBUG_tcg, "EfiSpecIdEventStruct pad too small\n");
             return -1;
         }
@@ -307,7 +307,7 @@ tpm20_write_EfiSpecIdEventStruct(void)
     event.hdr.numberOfAlgorithms = numAlgs;
     int event_size = offsetof(struct TCG_EfiSpecIdEventStruct
                               , digestSizes[numAlgs]);
-    u32 *vendorInfoSize = (void*)&event + event_size;
+    u8 *vendorInfoSize = (void*)&event + event_size;
     *vendorInfoSize = 0;
     event_size += sizeof(*vendorInfoSize);