---
id: "bug-006"
status: "fixed"
status_updated: "2026-09-24"
status_note: ""
component: "controller"
severity: "crash"
timestamp: "2026-05-21T08:30:20.719Z"
last_seen: "2026-09-19T09:00:00Z"
occurrences: 2
files: ["src/controller/ha.c"]
tags: ["md", "double-free", "asan", "ha_connect_to_peer", "endpoint_fini", "integration-test"]
related: []
legacy: true
---

# bug-006: AddressSanitizer: attempting double-free on sctx in ha_connect_to_peer

## Description
AddressSanitizer: attempting double-free on sctx in ha_connect_to_peer

## Environment
_Not recorded (migrated from buglog.json)._

## Reproduction
_Not recorded (migrated from buglog.json)._

## Root cause
endpoint_fini calls FREEUP(ep->data) which frees sctx, then ha_connect_to_peer also calls free(sctx) — double-free at lines 3594-3595 and 3600-3601

## Fix
Set ep->data = NULL before endpoint_fini so FREEUP becomes a no-op; then free(sctx) explicitly in the error paths

## Verification
_Not recorded (migrated from buglog.json)._

## References
_Not recorded (migrated from buglog.json)._