From 2b48b65b1980c4edb6391e4ccf6b1bd8313be944 Mon Sep 17 00:00:00 2001 From: Edward O'Callaghan Date: Sun, 3 Aug 2014 23:38:17 +1000 Subject: northbridge/intel: Out of bounds write to array in gma.h The signature[] array in the mailbox struct opregion_header_t has IGD_OPREGION_SIGNATURE written to it with a sizeof(IGD_OPREGION_SIGNATURE) and not a sizeof(signature[]). This resulted in a silent off-by-one out of bounds illegal write. Change-Id: I651620a753c743dd2ed2af51c012c27c14a5ea25 Found-by: Coverity Scan Signed-off-by: Edward O'Callaghan Reviewed-on: http://review.coreboot.org/6473 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/northbridge/intel/haswell/acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/northbridge/intel/haswell') diff --git a/src/northbridge/intel/haswell/acpi.c b/src/northbridge/intel/haswell/acpi.c index 964a9d3b5f..b2fab11e58 100644 --- a/src/northbridge/intel/haswell/acpi.c +++ b/src/northbridge/intel/haswell/acpi.c @@ -140,7 +140,7 @@ int init_igd_opregion(igd_opregion_t *opregion) // FIXME if IGD is disabled, we should exit here. memcpy(&opregion->header.signature, IGD_OPREGION_SIGNATURE, - sizeof(IGD_OPREGION_SIGNATURE)); + sizeof(opregion->header.signature)); /* 8kb */ opregion->header.size = sizeof(igd_opregion_t) / 1024; -- cgit v1.2.3