66971a0a26 RadioLibInterface: clear static instance on destruction to prevent UAF (#10254)
The constructor sets `RadioLibInterface::instance = this` immediately,
before `init()` runs. `initLoRa()` in RadioInterface.cpp creates each
radio variant with `new SX1262Interface(...)` or similar, then calls
`init()`, and if init fails the `unique_ptr<RadioInterface>` is reset
to nullptr — destroying the object — while the static `instance`
pointer continues to point at the freed memory.

Main loop then checks `RadioLibInterface::instance != nullptr` and
calls `pollMissedIrqs()` or `resetAGC()` on the dangling pointer →
Guru Meditation (IllegalInstruction / LoadProhibited).

Reported in #9880 on an ESP32-S3 dev board without radio hardware
attached, where init always fails and the leftover pointer crashes
the device on the next `loop()` iteration.

Fix: add a virtual destructor to `RadioLibInterface` that clears the
static pointer iff it still references this object. A later successful
init() may have replaced `instance` with a different interface — the
`instance == this` guard preserves that case.

Fixes #9880

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
2026-04-23 06:16:08 -05:00
2026-04-22 11:35:07 -05:00
2021-10-09 17:15:12 +11:00
2026-04-14 13:13:45 -05:00
2024-09-24 15:24:08 -05:00
2026-01-22 15:46:37 -06:00
2026-04-21 17:13:55 +02:00
2026-01-29 10:06:58 -06:00
2026-02-19 07:16:33 -06:00
2024-11-28 06:26:51 -06:00
2024-09-04 15:33:28 -07:00
2026-02-19 07:16:33 -06:00
2026-01-29 10:06:58 -06:00
2026-01-29 10:06:58 -06:00
2025-11-20 06:14:29 -06:00
2025-01-13 12:24:05 +08:00
2026-01-29 10:06:58 -06:00

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Meshtastic Firmware

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meshtastic%2Ffirmware | Trendshift

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.

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