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base repository: grpc/grpc-swift
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base: 1.26.0
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head repository: grpc/grpc-swift
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compare: 1.26.1
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  • 1 commit
  • 2 files changed
  • 1 contributor

Commits on Jun 3, 2025

  1. Fix decompression of empty messages with a ratio limit (#2246) 

    Motivation:

The decompressor has a decompression limit to protect against zip bombs.
This can either be absolute or ratio based. It's also possible in gRPC
for a zero length message to be marked as compressed. gRPC attempts to
decompress the zero length message and fails (because zlib wants a
non-zero sized buffer and gRPC won't give it one as the limit is the
buffer size is limited by the `ratio * msg_size` which in this case is
zero).

Modifications:

- If the input to decompress has no length, skip decompression
altogether

Result:

- Can decompress zero length payloads with the ratio limit
- Resolves #2245
    @glbrntt
    glbrntt authored Jun 3, 2025
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