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Matt Whitlock

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21 commits1 monitored projects1 candidates0 high-risk analyses
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Core LightningElements Project21 commits1 candidates0 high risk
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Moderate 60 AI analysisMessage 81 · Strong
EP Elements ProjectCore Lightning BitcoinLightning Network

lightningd: don't crash when truncating large log messages

This commit fixes a crash bug in Core Lightning's logging code. When a log message was very long and got truncated, the program accidentally used the standard free() on memory that had been allocated by the project's own tal allocation sys…

Use-after-free / allocator mismatch: free() called on tal-allocated memoryDenial of service via large log message triggering truncation path crashMemory ownership semantics corrected with TAKES annotations
81425f17by Matt Whitlock+22−183 files
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Informational 15 AI analysisMessage 45 · Thin
EP Elements ProjectCore Lightning BitcoinLightning Network

test_renepay.py: remove data dump into /tmp

This commit simply removes leftover debugging code from a test file that was writing temporary data dumps to /tmp. It is a cleanup change with no security relevance.

7a1a3633by Matt Whitlock+0−81 file
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Informational 13 AI analysisMessage 75 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

tests/test_misc.py: fix another "AF_UNIX path too long"

This is a tiny test-only cleanup. It replaces a direct Unix socket connection helper with a shared test helper and explicitly closes an old socket to avoid a resource leak during automated tests. There is no change to production code or us…

6db80536by Matt Whitlock+2−21 file
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Informational 18 AI analysisMessage 65 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

lightningd: notify plugins when finalizing channel

This commit adds a new plugin notification so that plugins are told when a Lightning channel finishes closing and reaches the CLOSED state. It also makes the optional human-readable 'message' field in that notification truly optional in th…

No security-relevant signals detected in the diff or commit metadata.Change is a feature addition (Changelog-Added) and API binding consistency fix.
cbfe1a99by Matt Whitlock+36−248 files
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Informational 15 AI analysisMessage 83 · Strong
EP Elements ProjectCore Lightning BitcoinLightning Network

tests: work around socket path name too long on Linux

This commit only changes test infrastructure. It makes integration tests work when run from very deeply nested directories by shortening the file paths used for internal Unix sockets. There is no change to the actual Core Lightning node so…

36a44ea0by Matt Whitlock+27−93 files
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Informational 15 AI analysisMessage 78 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

pyln-testing: pass timeout to BitcoinProxy

This commit changes a testing helper so that calls to Bitcoin Core during automated tests wait longer before giving up. It is purely a test-infrastructure reliability tweak and does not affect production code, user funds, or network securi…

f7db1440by Matt Whitlock+4−21 file
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Informational 15 AI analysisMessage 78 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

tests: skip certain tests if RUST is not enabled

This commit only changes test code. It makes pytest skip certain tests when the software is built without Rust support, so those tests no longer fail in non-Rust builds. There is no change to the actual Lightning node or wallet code, and n…

a05a3748by Matt Whitlock+16−45 files
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Informational 15 AI analysisMessage 93 · Strong
EP Elements ProjectCore Lightning BitcoinLightning Network

connectd: demote "Peer did not close, forcing close" to UNUSUAL

This commit changes only the severity level of a single log message. When Core Lightning tries to shut down a peer connection and the peer's transmit buffer stays full too long, the message 'Peer did not close, forcing close' is now logged…

7e85f924by Matt Whitlock+1−21 file
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Moderate 62 AI analysisMessage 73 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

common/json_parse_simple: drop redundant and wrong json_str_to_u64()

This commit fixes a bug in Core Lightning's JSON parsing. A helper function meant to read a number from a quoted JSON string was accidentally stripping one digit from each end. For example, the string "1234" was being read as 23, and singl…

Data corruption / incorrect TLV type encoding in keysend paymentsLogic error in JSON token boundary handlingRedundant code path masked the bug until code review/refactoring
71ddba28by Matt Whitlock+1−193 files
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Informational 15 AI analysisMessage 95 · Strong
EP Elements ProjectCore Lightning BitcoinLightning Network

pyln-testing: close log files when tearing down node_factory

This is a small cleanup change in the Python testing helper for Core Lightning. It makes sure log files are closed when test nodes are torn down, preventing file descriptor leaks during automated tests. There is no security relevance in th…

a62e9c55by Matt Whitlock+3−01 file
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Informational 17 AI analysisMessage 78 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

pyln-testing: close 'config.vars' after reading

This commit fixes a minor resource leak in a Python testing utility. The original code opened a small configuration file but never explicitly closed it. The fix uses Python's 'with' statement to ensure the file is closed automatically afte…

Resource leak (unclosed file handle) in test utilityNo untrusted input, network exposure, or privilege boundary crossedFix is a standard Python best-practice cleanup
abcb976eby Matt Whitlock+2−11 file
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Low 28 AI analysisMessage 95 · Strong
EP Elements ProjectCore Lightning BitcoinLightning Network

pyln-client: don't leak dirfd after connecting Unix socket

This commit fixes a file descriptor leak in the Python client library used to talk to Core Lightning. When connecting to a Unix socket whose path was too long, the code opened a temporary directory file descriptor but never closed it. Over…

Resource exhaustion via unclosed file descriptorCondition triggered only by long Unix socket pathsFix uses try/finally to guarantee descriptor cleanup
7e9729b2by Matt Whitlock+6−31 file
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Informational 18 AI analysisMessage 60 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

pyln-testing: don't leak file descriptor in GossipStore

This is a small cleanup in a Python testing helper that makes sure a gossip-store file is closed when the object is destroyed or reopened. It fixes a file-descriptor leak in test infrastructure, not in the actual Core Lightning node softwa…

Resource leak (file descriptor) fixed in testing helperNo input validation, privilege, cryptography, or network changesChange is confined to contrib/pyln-testing, not production node code
f7204c8dby Matt Whitlock+6−01 file
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Informational 19 AI analysisMessage 55 · Thin
EP Elements ProjectCore Lightning BitcoinLightning Network

tests: do not leak file descriptors

This commit fixes file descriptor leaks in the project's test suite. It replaces patterns like open(...).read() with context managers or helper methods that automatically close files. These changes only affect test code and test infrastruc…

Resource leak fix in test code onlyNo changes to production daemon, wallet, or network codeNo input validation, authentication, or cryptography changes
4d47cc68by Matt Whitlock+113−10510 files
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Low 47 AI analysisMessage 83 · Strong
EP Elements ProjectCore Lightning BitcoinLightning Network

plugins: generate certificates with required extensions

This commit fixes the automatically generated TLS certificates used by three Core Lightning plugins (grpc-plugin, rest-plugin, and wss-proxy-plugin). Recent versions of the urllib3 library started rejecting these certificates because they …

TLS certificate verification failure in client connectionsMissing X.509 Key Usage extension on generated CA and server certificatesMissing Authority Key Identifier extension on generated certificates
d635f19dby Matt Whitlock+21−43 files
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Low 37 AI analysisMessage 68 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

avoid UB when calling ctype functions

This commit fixes a low-level programming bug in four source files. The standard C library functions used to check whether a character is a digit or whitespace (like isdigit and isspace) can misbehave or crash when given a character whose …

Undefined-behavior mitigation in character classificationUse of project-specific ctype wrappers (cisdigit, cisspace)Signed char promotion risk on affected platforms
41d31dcdby Matt Whitlock+4−44 files
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Informational 20 AI analysisMessage 48 · Thin
EP Elements ProjectCore Lightning BitcoinLightning Network

use json_escape_unescape_len()

This is a small code cleanup that switches to a helper function which unescapes JSON strings without making an extra copy. The only behavior change is that invalid escape sequences in command usage strings are now rejected instead of silen…

Behavior change: invalid escape sequences in usage strings are now rejected rather than silently acceptedNo mention of vulnerability, CVE, security bug, or exploit in commit message or diffNo references to external security advisories or disclosures supplied
c28f5e70by Matt Whitlock+8−204 files
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Low 34 AI analysisMessage 68 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

ccan: update to get json_escape_unescape_len()

This commit updates a bundled helper library (CCAN) used by Core Lightning, mainly adding a new function that can unescape JSON strings of a known length rather than relying on null-terminated strings. The change also hardens the unescape …

Bounds check added after backslash before reading next characterMalformed trailing backslash now returns failure instead of reading past bufferStolen input is freed on error paths to avoid leaks/double-free issues
40318606by Matt Whitlock+38−104 files
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Informational 22 AI analysisMessage 65 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

lightningd: use json_escape_unescape_len for log message strings received from plugins

This commit is a small cleanup in Core Lightning's plugin handling. It changes how log messages received from plugins are unescaped, switching to a dedicated function that handles lengths directly. The commit message explicitly says this i…

Code change touches untrusted input parsing (plugin log messages)Use of length-aware unescape function may reduce risk of length mismanagementCommit message downplays security relevance, calling it 'neatening'
3dd09797by Matt Whitlock+3−41 file
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Low 35 AI analysisMessage 78 · Adequate
EP Elements ProjectCore Lightning BitcoinLightning Network

common: set errno=0 before calling strto{l,ul,ull}

This commit fixes a subtle programming bug in how Core Lightning converts text strings to numbers. Functions like strtoull only set an error flag (errno) when a value is too large, but they leave it unchanged on success. If some earlier co…

Defensive fix for errno misuse around strto* conversionsPotential false-positive overflow rejection in BOLT11 amount parsingPotential false-positive overflow rejection in JSON amount and integer parsing
ea2feccbby Matt Whitlock+6−13 files
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