Daniel P. Berrangé 10c3666658 hw/smbios: report error if table size is too large ... The SMBIOS 2.1 entry point uses a uint16 data type for reporting the total length of the tables. If the user passes -smbios configuration to QEMU that causes the table size to exceed this limit then various bad behaviours result, including - firmware hangs in an infinite loop - firmware triggers a KVM crash on bad memory access - firmware silently discards user's SMBIOS data replacing it with a generic data set. Limiting the size to 0xffff in QEMU avoids triggering most of these problems. There is a remaining bug in SeaBIOS which tries to prepend its own data for table 0, and does not check whether there is sufficient space before attempting this. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20200923133804.2089190-3-berrange@redhat.com> Tested-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2020-09-29 02:15:24 -04:00
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Kconfig	kconfig: introduce kconfig files	2019-03-07 21:45:53 +01:00
meson.build	meson: convert hw/smbios	2020-08-21 06:30:25 -04:00
smbios-stub.c	hw/smbios: Move to the hw/firmware/ subdirectory	2018-12-19 16:48:16 -05:00
smbios.c	hw/smbios: report error if table size is too large	2020-09-29 02:15:24 -04:00
smbios_build.h	hw/smbios: Remove "smbios_ipmi.h"	2018-12-19 16:48:16 -05:00
smbios_type_38-stub.c	hw/smbios: Remove "smbios_ipmi.h"	2018-12-19 16:48:16 -05:00
smbios_type_38.c	smbios:ipmi: Ignore IPMI devices with no fwinfo function	2019-09-20 14:08:10 -05:00