Bound patch decompression to guard against zstd bombs#245
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decode_patch streamed untrusted wire bytes through zstd::decode_all with no output cap, so a small malicious frame could expand to gigabytes and OOM the receiver. Decompress through a bounded reader and reject output exceeding a 1 GiB ceiling. Signed-off-by: Lars Erik Wik <lars.erik.wik@northern.tech> Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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decode_patchstreamed untrusted wire bytes throughzstd::decode_allwith no output cap, so a small malicious frame could expand to gigabytes and OOM the receiver. This decompresses through a bounded reader and rejects output exceeding a 1 GiB ceiling. Adds unit tests.🤖 Generated with Claude Code