Re: [PATCH] acpi: validate hotplug selector on access

[Philippe Mathieu-Daudé]

On 12/21/21 15:48, Michael S. Tsirkin wrote:
> When bus is looked up on a pci write, we didn't
> validate that the lookup succeeded.
> Fuzzers thus can trigger QEMU crash by dereferencing the NULL
> bus pointer.
> 
> Fixes: b32bd763a1 ("pci: introduce acpi-index property for PCI device")
> Cc: "Igor Mammedov" <imammedo@redhat.com>
> Fixes: https://gitlab.com/qemu-project/qemu/-/issues/770
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>  hw/acpi/pcihp.c | 3 +++
>  1 file changed, 3 insertions(+)

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>