Submit #524198: pytorch pytorch (torch.nn.utils.rnn.unpack_sequence) torch 2.6.0 Segmentation faultinfo

Titlepytorch pytorch (torch.nn.utils.rnn.unpack_sequence) torch 2.6.0 Segmentation fault
Description# Bug Description Calling `unpack_sequence` on an empty PackedSequence leads to a segmentation fault. # Reproduction Steps Run the following code: ``` import torch from torch.nn.utils.rnn import PackedSequence, unpack_sequence empty_data = torch.tensor([]) empty_batch_sizes = torch.tensor([], dtype=torch.int64) packed = PackedSequence(data=empty_data, batch_sizes=empty_batch_sizes) unpack_sequence(packed) ``` # Observed Behavior The program crashes with a segmentation fault, indicating an invalid memory access.
Source⚠️ https://github.com/pytorch/pytorch/issues/149622
User
 Default436352 (UID 81891)
Submission03/20/2025 15:43 (1 Year ago)
Moderation03/30/2025 19:42 (10 days later)
StatusAccepted
VulDB entry302048 [PyTorch 2.6.0 torch.nn.utils.rnn.unpack_sequence memory corruption]
Points20

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