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| author | cku <cku@mozilla.com> | 2017-04-28 11:48:21 +0800 |
|---|---|---|
| committer | yami <34216515+kn-yami@users.noreply.github.com> | 2019-04-03 14:55:35 +0200 |
| commit | 71c0318322ce998ea411f343607de524b2058799 (patch) | |
| tree | 29cff490491c44f33ab40aaef4182514495048aa /layout | |
| parent | ff2f287f82630ab3887d7d5c1e64e5b888ea0beb (diff) | |
| download | uxp-71c0318322ce998ea411f343607de524b2058799.tar.gz | |
Bug 1360343 - ensure maskSurface is not null before dereference, since it can be null because of OOM or gfx device reset. r=dvander
MozReview-Commit-ID: HX2qsWLZpMg
--HG--
extra : rebase_source : 046befc11151461a682842c31e2ce39247a5e1d8
Diffstat (limited to 'layout')
| -rw-r--r-- | layout/svg/nsSVGMaskFrame.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/layout/svg/nsSVGMaskFrame.cpp b/layout/svg/nsSVGMaskFrame.cpp index b8e4b32ae9..a22833d61a 100644 --- a/layout/svg/nsSVGMaskFrame.cpp +++ b/layout/svg/nsSVGMaskFrame.cpp @@ -274,7 +274,8 @@ nsSVGMaskFrame::GetMaskForMaskedFrame(gfxContext* aContext, } RefPtr<DataSourceSurface> maskSurface = maskSnapshot->GetDataSurface(); DataSourceSurface::MappedSurface map; - if (!maskSurface->Map(DataSourceSurface::MapType::READ, &map)) { + if (!maskSurface || + !maskSurface->Map(DataSourceSurface::MapType::READ, &map)) { return nullptr; } |