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Fix overflow indexing in causal_conv1d kernel #20938

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Merged
merged 1 commit into from
Jul 14, 2025
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Fix overflow indexing in causal_conv1d kernel #20938

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3 changes: 2 additions & 1 deletion vllm/model_executor/layers/mamba/ops/causal_conv1d.py
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,8 @@ def _causal_conv1d_fwd_kernel( # continuous batching

if IS_CONTINUOUS_BATCHING:
# cache_idx
conv_state_batch_coord = tl.load(conv_state_indices_ptr + idx_seq)
conv_state_batch_coord = tl.load(conv_state_indices_ptr + idx_seq).to(
tl.int64)
else:
# cache_idx
conv_state_batch_coord = idx_seq
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