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whisper,parakeet : reject invalid n_dims in tensor header to prevent stack-buffer-overflow on malformed model files (#3957)

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* fix: reject invalid n_dims in    tensor header to prevent stack-buffer-overflow on malformed model files

* Validate n_dims value in model file loading

Add error handling for invalid n_dims in model file.
This commit is contained in:
Md Shafiuzzaman
2026-08-07 08:16:52 +02:00
committed by GitHub
parent 306c88f4d1
commit df1547b6fe
2 changed files with 17 additions and 0 deletions
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src/parakeet.cpp
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@@ -1439,6 +1439,11 @@ static bool parakeet_model_load(struct parakeet_model_loader * loader, parakeet_
break;
}
if (n_dims < 0 || n_dims > 4) {
PARAKEET_LOG_ERROR("%s: invalid n_dims %d in model file (expected 0 <= n_dims <= 4)\n", __func__, n_dims);
return false;
}
int32_t nelements = 1;
int32_t ne[4] = { 1, 1, 1, 1 };
for (int i = 0; i < n_dims; ++i) {