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Verify the MADT checksum before using the table.

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Submitted by: njl
This commit is contained in:
marcel 2004-05-01 04:08:14 +00:00
parent 507ac98289
commit 5cc6b87ef2
1 changed files with 5 additions and 2 deletions
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7
sys/ia64/acpica/madt.c
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@ -27,6 +27,7 @@
*/
#include "acpi.h"
#include <contrib/dev/acpica/actables.h>
#include <machine/md_var.h>
@ -136,7 +137,8 @@ ia64_probe_sapics(void)
table->Signature[0], table->Signature[1],
table->Signature[2], table->Signature[3], table);
if (strncmp(table->Signature, APIC_SIG, 4) != 0)
if (strncmp(table->Signature, APIC_SIG, 4) != 0 ||
ACPI_FAILURE(AcpiTbVerifyTableChecksum((void *)table)))
continue;
/* Save the address of the processor interrupt block. */
@ -219,7 +221,8 @@ ia64_count_cpus(void)
table = (MULTIPLE_APIC_TABLE *)
IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[t]);
if (strncmp(table->Signature, APIC_SIG, 4) != 0)
if (strncmp(table->Signature, APIC_SIG, 4) != 0 ||
ACPI_FAILURE(AcpiTbVerifyTableChecksum((void *)table)))
continue;
end = (char *)table + table->Length;