Fix ReshapePRelu crash on scalar input#33937
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evkotov wants to merge 4 commits intoopenvinotoolkit:masterfrom
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Fix ReshapePRelu crash on scalar input#33937evkotov wants to merge 4 commits intoopenvinotoolkit:masterfrom
evkotov wants to merge 4 commits intoopenvinotoolkit:masterfrom
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The ReshapePRelu transformation was crashing when PRelu input had rank=0 (scalar). The check `prelu_rank.get_length() == 1` was intended to skip rank-1 inputs, but it allowed rank-0 scalars to pass through. The code then tried to access dimension index 1 (channel_dim_idx), causing "Accessing out-of-range dimension" exception. Changed the condition from `== 1` to `< 2` to skip both scalar (rank=0) and 1D (rank=1) inputs, as the transformation requires at least rank-2 tensors to access the channel dimension at index 1. Added unit test for scalar input case.
evkotov
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CuriousPanCake
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Feb 4, 2026
src/common/transformations/src/transformations/common_optimizations/reshape_prelu.cpp
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mryzhov
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Feb 6, 2026
src/common/transformations/src/transformations/common_optimizations/reshape_prelu.cpp
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mryzhov
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Feb 6, 2026
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Details:
The ReshapePRelu transformation crashes when PRelu input has rank=0 (scalar).
The existing check
prelu_rank.get_length() == 1skips rank-1 inputs but allows rank-0 scalars to pass through. The code then attempts to access dimension index 1 (channel_dim_idx), which causes "Accessing out-of-range dimension" exception.Changed the condition from
== 1to< 2to skip both scalar (rank=0) and 1D (rank=1) inputs, since the transformation requires at least rank-2 tensors to access the channel dimension.Tickets: