Ben Meadors
a41ddec1a7
* fix(nrf54l15): don't write past String buffer when a grow fails reserve() correctly keeps the old buffer when realloc returns NULL, but returned void, and assign()/concat() proceeded to memcpy with n >= _cap anyway - a heap overflow of up to n+1-_cap bytes into adjacent allocations. On this Zephyr target allocation failure is a realistic condition, and the result was heap corruption instead of a clean no-op. reserve() now reports success and the callers leave the string unchanged when the grow fails. * fix(nrf54l15): guard String length arithmetic against wraparound Per review: reject size requests whose n+1 / _len+n arithmetic would wrap before they reach the capacity check, and make reserve(0) fail without calling realloc (realloc(p, 0) would free the buffer and return NULL, leaving _buf dangling).
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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