abf217c38d
* fix(mesh): don't assert on malloc() failure in MemoryDynamic::alloc() MemoryDynamic<T>::alloc() called assert(p) right after malloc(), instead of returning nullptr like the static MemoryPool<T,N>::alloc() already does on exhaustion. All of packetPool's callers were already hardened to null-check allocCopy()/allocZeroed() (#10948, #10951), but that path is unreachable on real OOM here: assert() fires first, one level down, before the caller ever gets a chance to check anything. On STM32WL (packetPool is MemoryDynamic there - not enough static RAM for the fixed pool), assert() failures are wrapped to an infinite `while(true);` loop rather than aborting or resetting, so the thread just hangs forever instead of returning nullptr. Reproduced on wio-e5 hardware under a burst of incoming DMs, with free heap draining toward zero right before the hang. Assisted-by: Claude Sonnet 5 <noreply@anthropic.com> Signed-off-by: Andrew Yong <me@ndoo.sg> * fix: null-check the two allocUnique*() call sites missed by prior audits #10948/#10951 null-checked every raw-pointer packetPool.allocCopy()/ allocZeroed() call site, but missed the two spots using the UniquePacketPoolPacket (unique_ptr) wrapper: UdpMulticastHandler::onReceive() and MQTT::onReceive() both dereferenced the allocation result unconditionally. Previously unreachable in practice: MemoryDynamic::alloc() asserted before ever returning null, so nothing downstream saw it. Fixed alongside that assert removal (this branch) since these two are now reachable with a genuine null - same fix as everywhere else, just an unchecked pointer that turns up under OOM. Assisted-by: Claude Sonnet 5 <noreply@anthropic.com> Signed-off-by: Andrew Yong <me@ndoo.sg> * fix(SimRadio): don't leave isReceiving stuck true on allocation failure startReceive() set isReceiving = true before allocCopy(), so a failed allocation (now reachable with a real nullptr instead of hanging in assert()) left the simulated radio permanently marked as receiving: handleReceiveInterrupt() returns immediately on a null receivingPacket, before ever reaching the code that would clear isReceiving. Assisted-by: Claude Sonnet 5 <noreply@anthropic.com> Signed-off-by: Andrew Yong <me@ndoo.sg> --------- Signed-off-by: Andrew Yong <me@ndoo.sg> Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Meshtastic Firmware
Overview
This repository contains the official device firmware for Meshtastic, an open-source LoRa mesh networking project designed for long-range, low-power communication without relying on internet or cellular infrastructure. The firmware supports various hardware platforms, including ESP32, nRF52, RP2040/RP2350, and Linux-based devices.
Meshtastic enables text messaging, location sharing, and telemetry over a decentralized mesh network, making it ideal for outdoor adventures, emergency preparedness, and remote operations.
Get Started
- 🔧 Building Instructions - Learn how to compile the firmware from source.
- ⚡ Flashing Instructions - Install or update the firmware on your device.
Join our community and help improve Meshtastic! 🚀
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