From e102068c0daab41f953d0594df1cdb92ae70de72 Mon Sep 17 00:00:00 2001 From: Eric Pouech Date: Thu, 17 Feb 2022 12:33:09 -0600 Subject: [PATCH] quartz: Always allocate the entire VIDEOINFO structure. Signed-off-by: Eric Pouech Signed-off-by: Zebediah Figura Signed-off-by: Alexandre Julliard --- dlls/quartz/avidec.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/dlls/quartz/avidec.c b/dlls/quartz/avidec.c index f8660890273..f473c829cba 100644 --- a/dlls/quartz/avidec.c +++ b/dlls/quartz/avidec.c @@ -342,9 +342,12 @@ static HRESULT avi_decompressor_source_get_media_type(struct strmbase_pin *iface if (index < ARRAY_SIZE(formats)) { - if (!(format = CoTaskMemAlloc(offsetof(VIDEOINFO, dwBitMasks[3])))) + /* In theory we could allocate less than this, but gcc generates + * -Warray-bounds warnings if we access the structure through a + * VIDEOINFO pointer, even if we only access valid fields. */ + if (!(format = CoTaskMemAlloc(sizeof(*format)))) return E_OUTOFMEMORY; - memset(format, 0, offsetof(VIDEOINFO, dwBitMasks[3])); + memset(format, 0, sizeof(*format)); format->rcSource = sink_format->rcSource; format->rcTarget = sink_format->rcTarget;