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`step` and `maskStep` are used to increase/decrease `pImage`. But it's done on unsigned type, relying on overflow, which is UB. (step is size_t but seed.y is int and can be negative, the result is therefore unsigned which can overflow)
asmorkalov
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Jan 27, 2025
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stepandmaskStepare used to increase/decreasepImage. But it's done on unsigned type, relying on overflow, which is UB. (step is size_t but seed.y is int and can be negative, the result is therefore unsigned which can overflow)Pull Request Readiness Checklist
See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request
Patch to opencv_extra has the same branch name.