I can reproduce the issue on Nightly139.0a1 Windows11. Regression window: https://hg-edge.mozilla.org/integration/autoland/pushloghtml?fromchange=4852824f5ae35b46951ffe0ec3e814ac5c2a97f3&tochange=8599fc020cd6cc2f18ea36ced2f3427f979e3c78 And sometimes tab crashes. Crash report: https://crash-stats.mozilla.org/report/index/e8f36b1d-fd01-49cd-81cf-7bc7f0250416 Reason: ``` EXCEPTION_ACCESS_VIOLATION_READ ``` Top 10 frames: ``` 0 xul.dll mozilla::gfx::UnpackRowRGB24(unsigned char const*, unsigned char*, int) gfx/2d/Swizzle.cpp:1049 0 xul.dll mozilla::gfx::UnpackRowRGB24_SSSE3(unsigned char const*, unsigned char*, int) gfx/2d/SwizzleSSSE3.cpp:37 0 xul.dll mozilla::gfx::UnpackRowRGB24_AVX2<1>(unsigned char const*, unsigned char*, int) gfx/2d/SwizzleAVX2.cpp:37 1 xul.dll mozilla::image::SwizzleFilter<mozilla::image::DownscalingFilter<mozilla::imag... image/SurfaceFilters.h:97 2 xul.dll mozilla::image::SurfaceFilter::AdvanceRow(unsigned char const*) image/SurfacePipe.h:141 2 xul.dll mozilla::image::SurfaceFilter::WriteBuffer(unsigned int const*) image/SurfacePipe.h:300 2 xul.dll mozilla::image::SurfacePipe::WriteBuffer(unsigned int const*) image/SurfacePipe.h:705 2 xul.dll mozilla::image::nsPNGDecoder::WriteRow(unsigned char*) image/decoders/nsPNGDecoder.cpp:862 2 xul.dll mozilla::image::nsPNGDecoder::row_callback(png_struct_def*, unsigned char*, u... image/decoders/nsPNGDecoder.cpp:843 3 xul.dll MOZ_PNG_push_have_row(png_struct_def*, unsigned char*) media/libpng/pngpread.c:1050 ```
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I can reproduce the issue on Nightly139.0a1 Windows11. Regression window: https://hg-edge.mozilla.org/integration/autoland/pushloghtml?fromchange=4852824f5ae35b46951ffe0ec3e814ac5c2a97f3&tochange=8599fc020cd6cc2f18ea36ced2f3427f979e3c78 And sometimes tab crashes when repeatedly reload or resize browser. Crash report: https://crash-stats.mozilla.org/report/index/e8f36b1d-fd01-49cd-81cf-7bc7f0250416 Reason: ``` EXCEPTION_ACCESS_VIOLATION_READ ``` Top 10 frames: ``` 0 xul.dll mozilla::gfx::UnpackRowRGB24(unsigned char const*, unsigned char*, int) gfx/2d/Swizzle.cpp:1049 0 xul.dll mozilla::gfx::UnpackRowRGB24_SSSE3(unsigned char const*, unsigned char*, int) gfx/2d/SwizzleSSSE3.cpp:37 0 xul.dll mozilla::gfx::UnpackRowRGB24_AVX2<1>(unsigned char const*, unsigned char*, int) gfx/2d/SwizzleAVX2.cpp:37 1 xul.dll mozilla::image::SwizzleFilter<mozilla::image::DownscalingFilter<mozilla::imag... image/SurfaceFilters.h:97 2 xul.dll mozilla::image::SurfaceFilter::AdvanceRow(unsigned char const*) image/SurfacePipe.h:141 2 xul.dll mozilla::image::SurfaceFilter::WriteBuffer(unsigned int const*) image/SurfacePipe.h:300 2 xul.dll mozilla::image::SurfacePipe::WriteBuffer(unsigned int const*) image/SurfacePipe.h:705 2 xul.dll mozilla::image::nsPNGDecoder::WriteRow(unsigned char*) image/decoders/nsPNGDecoder.cpp:862 2 xul.dll mozilla::image::nsPNGDecoder::row_callback(png_struct_def*, unsigned char*, u... image/decoders/nsPNGDecoder.cpp:843 3 xul.dll MOZ_PNG_push_have_row(png_struct_def*, unsigned char*) media/libpng/pngpread.c:1050 ```