smbios: buffer overflow when zeroing entry point
A SMBIOS 3 entry point has a different length than an SMBIOS 2.1 entry
point.
Fixes: 70924294f375 ("smbios: Use SMBIOS 3.0 to support an address above 4GB")
Fixes: 1c5f6fa3883d ("smbios: Drop support for SMBIOS2 tables")
Addresses-Coverity-ID: 477212 ("Wrong sizeof argument")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/smbios.c b/lib/smbios.c
index 41aa936..25595f5 100644
--- a/lib/smbios.c
+++ b/lib/smbios.c
@@ -591,8 +591,8 @@
table_addr = (ulong)map_sysmem(tables, 0);
/* now go back and write the SMBIOS3 header */
- se = map_sysmem(start_addr, sizeof(struct smbios_entry));
- memset(se, '\0', sizeof(struct smbios_entry));
+ se = map_sysmem(start_addr, sizeof(struct smbios3_entry));
+ memset(se, '\0', sizeof(struct smbios3_entry));
memcpy(se->anchor, "_SM3_", 5);
se->length = sizeof(struct smbios3_entry);
se->major_ver = SMBIOS_MAJOR_VER;