56fc3fc572
Avoids a bleed out attack in which a node can be made to allocate memory slowly or very fast in small strides, by sending bad data to code that invokes NewAnyWithCustomTypeURL, in which we unconditionally returned a new Any object. On a 64-bit machine, this would waste 96 bytes per invocation even on error. Added a test to ensure zero allocations with a fixed error returned. Also added a benchmark which shows reduction in wasted allocations and wasted CPU time: ```shell $ benchstat before.txt after.txt name old time/op new time/op delta NewAnyWithCustomTypeURLWithErrorReturned-8 142ns ± 6% 55ns ±12% -61.65% (p=0.000 n=9+10) name old alloc/op new alloc/op delta NewAnyWithCustomTypeURLWithErrorReturned-8 96.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10) name old allocs/op new allocs/op delta NewAnyWithCustomTypeURLWithErrorReturned-8 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10) ``` Fixes #8537 |
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|---|---|---|
| .github | ||
| baseapp | ||
| client | ||
| codec | ||
| contrib | ||
| cosmovisor | ||
| crypto | ||
| docs | ||
| proto | ||
| scripts | ||
| server | ||
| simapp | ||
| snapshots | ||
| std | ||
| store | ||
| telemetry | ||
| tests | ||
| testutil | ||
| third_party/proto | ||
| types | ||
| version | ||
| x | ||
| .build.sh | ||
| .clang-format | ||
| .codecov.yml | ||
| .dockerignore | ||
| .gitattributes | ||
| .gitignore | ||
| .golangci.yml | ||
| .goreleaser.yml | ||
| .mergify.yml | ||
| buf.yaml | ||
| CHANGELOG.md | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| docker-compose.yml | ||
| Dockerfile | ||
| go.mod | ||
| go.sum | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| SECURITY.md | ||
| STABLE_RELEASES.md | ||
Cosmos SDK
The Cosmos-SDK is a framework for building blockchain applications in Golang.
It is being used to build Gaia, the first implementation of the Cosmos Hub.
WARNING: The SDK has mostly stabilized, but we are still making some breaking changes.
Note: Requires Go 1.15+
Quick Start
To learn how the SDK works from a high-level perspective, go to the SDK Intro.
If you want to get started quickly and learn how to build on top of the SDK, please follow the SDK Application Tutorial. You can also fork the tutorial's repository to get started building your own Cosmos SDK application.
For more, please go to the Cosmos SDK Docs.
Cosmos Hub Mainnet
The Cosmos Hub application, gaia, has moved to its own repository. Go there to join the Cosmos Hub mainnet and more.
Starport
If you are starting a new app or a new module you can use Starport to help you get started and speed up development. If you have any questions or find a bug, feel free to open an issue in the repo.
Disambiguation
This Cosmos-SDK project is not related to the React-Cosmos project (yet). Many thanks to Evan Coury and Ovidiu (@skidding) for this Github organization name. As per our agreement, this disambiguation notice will stay here.