On Fri, Jan 20, 2023 at 07:10:52PM +0100, Rafael J. Wysocki wrote: > On Sun, Jan 15, 2023 at 7:38 PM Kees Cook <keescook@xxxxxxxxxxxx> wrote: > > > > On Fri, Nov 18, 2022 at 10:15:51AM -0800, Kees Cook wrote: > > > Functionally identical to ACPICA upstream pull request 813: > > > https://github.com/acpica/acpica/pull/813 > > > > Any update on this? Upstream is currently unbuildable since October. > > > > > One-element arrays (and multi-element arrays being treated as > > > dynamically sized) are deprecated[1] and are being replaced with > > > flexible array members in support of the ongoing efforts to tighten the > > > FORTIFY_SOURCE routines on memcpy(), correctly instrument array indexing > > > with UBSAN_BOUNDS, and to globally enable -fstrict-flex-arrays=3. > > > > > > Replace one-element array with flexible-array member in struct > > > acpi_resource_extended_irq. Replace 4-byte fixed-size array with 4-byte > > > padding in a union with a flexible-array member in struct > > > acpi_pci_routing_table. > > > > > > This results in no differences in binary output. > > > > In the meantime, can you take this patch for Linux, and we can wait for > > ACPICA to catch up? > > Applied now (as 6.3 material), sorry for the delay. Thanks! -- Kees Cook