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🛡️ Sentinel: Validate GPU compression output sizes#232

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404Setup merged 1 commit intomainfrom
sentinel-cuda-validation-7675462695814040533
Feb 18, 2026
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🛡️ Sentinel: Validate GPU compression output sizes#232
404Setup merged 1 commit intomainfrom
sentinel-cuda-validation-7675462695814040533

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🛡️ Sentinel: Security Enhancement

Enhancement: Added input validation for data returned from the GPU in src/batch_cuda.rs.
Reason: The host trusted output_sizes from the GPU to slice the output buffer. If the GPU kernel (or hardware) malfunctioned and returned a large size, the host code would panic or potentially access out-of-bounds memory.
Fix: Added checks to ensure:

  1. offset + size does not exceed the allocated buffer size.
  2. size does not exceed the pre-calculated compression bound for the specific input.
    Impact: Prevents Denial of Service (DoS) via panic and potential memory safety issues in the CUDA batch compression feature.

PR created automatically by Jules for task 7675462695814040533 started by @404Setup

Added security validation in `src/batch_cuda.rs` to check output sizes returned by the GPU kernel.
This prevents potential buffer overflows or panics (DoS) if the GPU returns corrupted or malicious size values.
Verified that `offset + size <= total_output_bound` and `size <= expected_bound`.

Co-authored-by: 404Setup <[email protected]>
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@404Setup 404Setup merged commit b2c86a6 into main Feb 18, 2026
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@404Setup 404Setup deleted the sentinel-cuda-validation-7675462695814040533 branch February 19, 2026 00:31
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