On Tue, 17 Sep 2019 at 21:50, Laszlo Ersek <ler...@redhat.com> wrote: > > In the following call tree: > > PlatformInit () > mInstalledPackages = HiiAddPackages () > GopInstalled () > PopulateForm (PackageList = mInstalledPackages) > CreateResolutionOptions (PackageList) > HiiSetString (PackageList > HiiUpdateForm (PackageList) > > PlatformDxe passes around an EFI_HII_HANDLE that (a) originates from > HiiAddPackages() and (b) is ultimately passed to HiiSetString() and > HiiUpdateForm(). The intermediate functions PopulateForm() and > CreateResolutionOptions() however take that parameter as an > (EFI_HII_HANDLE*). > > There is no bug in practice (because the affected functions never try to > de-reference the "PackageList" parameter, they just pass it on), but the > function prototypes are semantically wrong. Fix that. > > This could remain hidden so long because pointer-to-VOID silently converts > to/from any pointer-to-object type, and the UEFI spec mandates that > EFI_HII_HANDLE be a typedef to (VOID*). > > Cc: Ard Biesheuvel <ard.biesheu...@linaro.org> > Cc: Jordan Justen <jordan.l.jus...@intel.com> > Signed-off-by: Laszlo Ersek <ler...@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheu...@linaro.org> > --- > > Notes: > tested in UiApp > > OvmfPkg/PlatformDxe/Platform.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/OvmfPkg/PlatformDxe/Platform.c b/OvmfPkg/PlatformDxe/Platform.c > index 09181769babf..23ad43901f66 100644 > --- a/OvmfPkg/PlatformDxe/Platform.c > +++ b/OvmfPkg/PlatformDxe/Platform.c > @@ -486,7 +486,7 @@ STATIC > EFI_STATUS > EFIAPI > CreateResolutionOptions ( > - IN EFI_HII_HANDLE *PackageList, > + IN EFI_HII_HANDLE PackageList, > OUT VOID **OpCodeBuffer, > IN UINTN NumGopModes, > IN GOP_MODE *GopModes > @@ -547,7 +547,7 @@ STATIC > EFI_STATUS > EFIAPI > PopulateForm ( > - IN EFI_HII_HANDLE *PackageList, > + IN EFI_HII_HANDLE PackageList, > IN EFI_GUID *FormSetGuid, > IN EFI_FORM_ID FormId, > IN UINTN NumGopModes, > -- > 2.19.1.3.g30247aa5d201 > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#48040): https://edk2.groups.io/g/devel/message/48040 Mute This Topic: https://groups.io/mt/34180225/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
