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openSUSE:Leap:15.3:ARM
kimageformats
0001-xcf-Fix-Stack-buffer-overflow-WRITE-on-bro...
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File 0001-xcf-Fix-Stack-buffer-overflow-WRITE-on-broken-files.patch of Package kimageformats
From bc26c1936feaf1bc1d17d4325dfc9db33baf9aae Mon Sep 17 00:00:00 2001 From: Albert Astals Cid <aacid@kde.org> Date: Fri, 30 Apr 2021 00:07:21 +0200 Subject: [PATCH] xcf: Fix Stack-buffer-overflow WRITE on broken files oss-fuzz/33742 (cherry picked from commit 297ed9a2fe339bfe36916b9fce628c3242e5be0f) --- src/imageformats/xcf.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/imageformats/xcf.cpp b/src/imageformats/xcf.cpp index 5bf6077..2154a1f 100644 --- a/src/imageformats/xcf.cpp +++ b/src/imageformats/xcf.cpp @@ -561,6 +561,7 @@ inline QRgb qRgba(const QRgb rgb, int a) */ XCFImageFormat::XCFImageFormat() { + static_assert(sizeof(QRgb) == 4, "the code assumes sizeof(QRgb) == 4, if that's not your case, help us fix it :)"); } /*! @@ -1392,6 +1393,11 @@ bool XCFImageFormat::loadHierarchy(QDataStream &xcf_io, Layer &layer) break; } + if (bpp > 4) { + qCDebug(XCFPLUGIN) << "bpp is" << bpp << "We don't support layers with bpp > 4"; + return false; + } + // GIMP stores images in a "mipmap"-like format (multiple levels of // increasingly lower resolution). Only the top level is used here, // however. -- 2.25.1
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