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This repository was archived by the owner on Apr 8, 2024. It is now read-only.
This repository was archived by the owner on Apr 8, 2024. It is now read-only.

Race condition in global g_spacemesh_api_abort_flag #79

@fasmat

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@fasmat

g_spacemesh_api_abort_flag (defined here https://github.com/spacemeshos/gpu-post/blob/develop/src/api_internal.cpp#L15) is used as a termination condition to stop calculation of hashes early (e.g. here https://github.com/spacemeshos/gpu-post/blob/develop/src/cuda/driver-cuda.cpp#L220).

This global variable isn't protected from concurrent access, so stopping a running process is inherently unsafe at the moment. This should be fixed by protecting g_spacemesh_api_abort_flag with mutexes.

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