87b8a4ee50
fef99e6563qt: fix out-of-bounds read in RPCParseCommandLine on empty command (sayed nabhan) Pull request description: When a console line has no command name (it starts with `)`, or is `()`, `(`, or `,`), RPCParseCommandLine reaches the command-execution branch while the current argument frame is still empty, so `stack.back()[0]` reads out of bounds and the argument list built from `stack.back().begin() + 1` to `end()` is an invalid iterator range (throws std::length_error in practice, UBSan flags the null-pointer reference otherwise). The `(` branch already guards the frame with `stack.back().size() > 0`, so I add the same check to the `)`/newline branch and the empty frame is skipped. To be clear, `(` alone isn't safe on master either: it fails via the `\n` branch, not via the `(` branch itself (the state there isn't `STATE_ARGUMENT`), and `,` alone fails the same way. Since there's no command to run in any of these cases, the parser now returns `false` so the console reports an invalid command line, consistent with other fully-invalid input like a bare `'` or `"`, rather than silently ignoring it. Regression cases added to rpcNestedTests for `)`, `()`, `(` and `,` (all abort on master without the guard), plus `getblockchaininfo)` which stays tolerated. ACKs for top commit: hebasto: ACKfef99e6563, tested on Ubuntu 26.04. Tree-SHA512: 15822a0525402878483d5b2d0fe7b9e27916e514c1a8ad4a697f11b1e5cfe33f5fcd1f089efefb976bcf0d84cdf5166a58a070593924c2d4c2e1f8224d06590f
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
What is Bitcoin Core?
Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.
Further information about Bitcoin Core is available in the doc folder.
License
Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/license/MIT.
Development Process
The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be
completely stable. Tags are created
regularly from release branches to indicate new official, stable release versions of Bitcoin Core.
The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.
The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.
Testing
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Automated Testing
Developers are strongly encouraged to write unit tests for new code, and to
submit new unit tests for old code. Unit tests can be compiled and run
(assuming they weren't disabled during the generation of the build system) with: ctest. Further details on running
and extending unit tests can be found in /src/test/README.md.
There are also regression and integration tests, written
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These tests can be run (if the test dependencies are installed) with: build/test/functional/test_runner.py
(assuming build is your build directory).
The CI (Continuous Integration) systems make sure that every pull request is tested on Windows, Linux, and macOS. The CI must pass on all commits before merge to avoid unrelated CI failures on new pull requests.
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Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.
Translations
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Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.
Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.