CoreWeave Tensorizer OOM + CPU DoS PoCs
Files
oom_header.tensorsโ header_len = MAX โ 18EB allocation attempt โ OOM crashcpu_dos_count.tensorsโ tensor_count = MAX โ infinite loop in metadata parsing
Root Cause
serialization.py: unchecked uint64 values from file header used directly in
bytearray() allocation and range() loop without bounds validation.
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