| Message ID | 20210903110702.588291-9-philmd@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | glib: Replace g_memdup() by g_memdup2_qemu() | expand |
On Fri, 3 Sep 2021 13:06:42 +0200 Philippe Mathieu-Daudé <philmd@redhat.com> wrote: > acpi_data_len() returns an unsigned type, which might be bigger > than 32-bit (although it is unlikely such value is returned). > Hold the returned value in an 'unsigned' type to avoid unlikely > size truncation. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Igor Mammedov <imammedo@redhat.com> > --- > hw/arm/virt-acpi-build.c | 2 +- > hw/i386/acpi-build.c | 4 ++-- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index 037cc1fd82c..95543d43e2a 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -885,7 +885,7 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) > > static void acpi_ram_update(MemoryRegion *mr, GArray *data) > { > - uint32_t size = acpi_data_len(data); > + unsigned size = acpi_data_len(data); > > /* Make sure RAM size is correct - in case it got changed > * e.g. by migration */ > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c > index a33ac8b91e1..aa269914b49 100644 > --- a/hw/i386/acpi-build.c > +++ b/hw/i386/acpi-build.c > @@ -2660,7 +2660,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine) > > static void acpi_ram_update(MemoryRegion *mr, GArray *data) > { > - uint32_t size = acpi_data_len(data); > + unsigned size = acpi_data_len(data); > > /* Make sure RAM size is correct - in case it got changed e.g. by migration */ > memory_region_ram_resize(mr, size, &error_abort); > @@ -2783,7 +2783,7 @@ void acpi_setup(void) > * Though RSDP is small, its contents isn't immutable, so > * we'll update it along with the rest of tables on guest access. > */ > - uint32_t rsdp_size = acpi_data_len(tables.rsdp); > + unsigned rsdp_size = acpi_data_len(tables.rsdp); > > build_state->rsdp = g_memdup(tables.rsdp->data, rsdp_size); > fw_cfg_add_file_callback(x86ms->fw_cfg, ACPI_BUILD_RSDP_FILE,
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 037cc1fd82c..95543d43e2a 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -885,7 +885,7 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) static void acpi_ram_update(MemoryRegion *mr, GArray *data) { - uint32_t size = acpi_data_len(data); + unsigned size = acpi_data_len(data); /* Make sure RAM size is correct - in case it got changed * e.g. by migration */ diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index a33ac8b91e1..aa269914b49 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -2660,7 +2660,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine) static void acpi_ram_update(MemoryRegion *mr, GArray *data) { - uint32_t size = acpi_data_len(data); + unsigned size = acpi_data_len(data); /* Make sure RAM size is correct - in case it got changed e.g. by migration */ memory_region_ram_resize(mr, size, &error_abort); @@ -2783,7 +2783,7 @@ void acpi_setup(void) * Though RSDP is small, its contents isn't immutable, so * we'll update it along with the rest of tables on guest access. */ - uint32_t rsdp_size = acpi_data_len(tables.rsdp); + unsigned rsdp_size = acpi_data_len(tables.rsdp); build_state->rsdp = g_memdup(tables.rsdp->data, rsdp_size); fw_cfg_add_file_callback(x86ms->fw_cfg, ACPI_BUILD_RSDP_FILE,
acpi_data_len() returns an unsigned type, which might be bigger than 32-bit (although it is unlikely such value is returned). Hold the returned value in an 'unsigned' type to avoid unlikely size truncation. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- hw/arm/virt-acpi-build.c | 2 +- hw/i386/acpi-build.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)