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xemu/hw/i386
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Sergio Lopez 13cd9e6798 hw/i386/elfboot: allocate "header" in heap 
In x86_load_linux(), we were using a stack-allocated array as data for
fw_cfg_add_bytes(). Since the latter just takes a reference to the
pointer instead of copying the data, it can happen that the contents
have been overridden by the time the guest attempts to access them.

Instead of using the stack-allocated array, allocate some memory from
the heap, copy the contents of the array, and use it for fw_cfg.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20241109053748.13183-1-slp@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
 		2024-11-18 13:36:39 +01:00
..
kvm hw: Use device_class_set_legacy_reset() instead of opencoding 2024-09-13 15:31:44 +01:00
xen hw/xen: xenpvh: Disable buffered IOREQs for ARM 2024-10-03 19:37:35 +02:00
Kconfig machine/nitro-enclave: New machine type for AWS Nitro Enclaves 2024-10-31 18:28:33 +01:00
acpi-build.c amd_iommu: Rename variable mmio to mr_mmio 2024-11-04 16:03:24 -05:00
acpi-build.h hw/acpi/ich9: Enable ACPI PCI hot-plug 2021-07-16 04:33:35 -04:00
acpi-common.c hw/i386/acpi: Set PCAT_COMPAT bit only when pic is not disabled 2024-04-23 17:35:25 +02:00
acpi-common.h hw/i386/acpi: Declare pc_madt_cpu_entry() in 'acpi-common.h' 2024-02-20 20:34:21 +03:00
acpi-microvm.c hw/i386/acpi-microvm.c: Use common function to add virtio in DSDT 2024-01-10 18:47:46 +10:00
acpi-microvm.h microvm/acpi: add minimal acpi support 2020-09-17 14:16:19 +02:00
amd_iommu-stub.c amd_iommu: report x2APIC support to the operating system 2024-02-14 06:09:32 -05:00
amd_iommu.c amd_iommu: Check APIC ID > 255 for XTSup 2024-11-04 16:03:24 -05:00
amd_iommu.h amd_iommu: Use shared memory region for Interrupt Remapping 2024-11-04 16:03:24 -05:00
e820_memory_layout.c hw/i386/fw_cfg: Add etc/e820 to fw_cfg late 2024-07-03 18:14:06 -04:00
e820_memory_layout.h hw/i386/fw_cfg: Add etc/e820 to fw_cfg late 2024-07-03 18:14:06 -04:00
fw_cfg.c hw/i386/fw_cfg: Add etc/e820 to fw_cfg late 2024-07-03 18:14:06 -04:00
fw_cfg.h hw/i386/fw_cfg: Add etc/e820 to fw_cfg late 2024-07-03 18:14:06 -04:00
intel_iommu.c intel_iommu: Add missed reserved bit check for IEC descriptor 2024-11-04 16:03:25 -05:00
intel_iommu_internal.h intel_iommu: Add missed reserved bit check for IEC descriptor 2024-11-04 16:03:25 -05:00
meson.build machine/nitro-enclave: New machine type for AWS Nitro Enclaves 2024-10-31 18:28:33 +01:00
microvm-dt.c hw/char/serial.h: Extract serial-isa.h 2024-10-03 19:33:23 +02:00
microvm-dt.h microvm: add device tree support. 2021-11-02 17:24:17 +01:00
microvm.c machine/nitro-enclave: New machine type for AWS Nitro Enclaves 2024-10-31 18:28:33 +01:00
monitor.c hw/i386: move rtc-reset-reinjection command out of hw/rtc 2024-05-10 15:45:15 +02:00
multiboot.c hw/i386: Use explicit little-endian LD/ST API 2024-10-15 12:13:59 -03:00
multiboot.h target/i386: use DMA-enabled multiboot ROM for new-enough QEMU machine types 2021-11-02 15:57:27 +01:00
nitro_enclave.c machine/nitro-enclave: New machine type for AWS Nitro Enclaves 2024-10-31 18:28:33 +01:00
pc.c hw/i386/pc: Don't try to init PCI NICs if there is no PCI bus 2024-11-09 08:34:07 +01:00
pc_piix.c hw: add compat machines for 9.2 2024-09-05 13:12:36 +01:00
pc_q35.c hw: add compat machines for 9.2 2024-09-05 13:12:36 +01:00
pc_sysfw.c hw/i386/sev: Use guest_memfd for legacy ROMs 2024-06-05 11:01:06 +02:00
pc_sysfw_ovmf-stubs.c hw/i386: Introduce X86_FW_OVMF Kconfig symbol 2021-07-14 22:28:58 +02:00
pc_sysfw_ovmf.c hw/i386: Replace magic number with field length calculation 2022-03-06 05:08:23 -05:00
port92.c hw: Use device_class_set_legacy_reset() instead of opencoding 2024-09-13 15:31:44 +01:00
sgx-epc.c Mark remaining global TypeInfo instances as const 2022-02-21 13:30:20 +00:00
sgx-stub.c target/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine 2024-07-31 13:13:31 +02:00
sgx.c target/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine 2024-07-31 13:13:31 +02:00
trace-events vmmouse: replace DPRINTF with tracing 2023-09-12 10:37:01 +04:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vapic.c hw: Use device_class_set_legacy_reset() instead of opencoding 2024-09-13 15:31:44 +01:00
vmmouse.c hw: Use device_class_set_legacy_reset() instead of opencoding 2024-09-13 15:31:44 +01:00
vmport.c Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
x86-common.c hw/i386/elfboot: allocate "header" in heap 2024-11-18 13:36:39 +01:00
x86-cpu.c hw/i386: split x86.c in multiple parts 2024-05-10 15:45:15 +02:00
x86-iommu-stub.c hw/i386/pc: Remove x86_iommu_get_type() 2021-11-01 18:49:10 -04:00
x86-iommu.c hw/i386/pc: Rename "bus" attribute to "pcibus" 2024-02-27 09:37:30 +01:00
x86.c hw/i386/x86: Fix superfluous trailing semicolon 2024-07-17 14:04:15 +03:00