banger/internal/daemon
Thales Maciel 43dfda14f8
Fix TOCTOU race in lockVMID
The old pattern held vmLocksMu to get/create a *sync.Mutex, then
released vmLocksMu before calling lock.Lock(). In the gap between
the two operations a concurrent goroutine could observe the entry,
and any future cleanup path that deleted map entries could let a
third goroutine create a fresh *sync.Mutex for the same ID — leaving
two callers holding independent locks with no mutual exclusion.

Fix: replace the manual map + vmLocksMu pair with sync.Map and
LoadOrStore. LoadOrStore is atomic at the map level: exactly one
*sync.Mutex wins for each VM ID, with no release-then-reacquire
gap between the lookup and the insert. vmLocksMu is removed.
2026-04-14 19:50:04 -03:00
..
capabilities.go Add guest sessions and agent VM defaults 2026-04-12 23:48:42 -03:00
capabilities_test.go Manage image artifacts and show VM create progress 2026-03-21 14:48:01 -03:00
daemon.go Fix TOCTOU race in lockVMID 2026-04-14 19:50:04 -03:00
daemon_test.go Rename experimental Void image to void 2026-04-01 20:15:28 -03:00
dashboard.go Serve a local web UI from bangerd 2026-03-21 16:47:47 -03:00
dns_routing.go Route .vm DNS through systemd-resolved 2026-03-22 15:07:22 -03:00
dns_routing_test.go Route .vm DNS through systemd-resolved 2026-03-22 15:07:22 -03:00
doctor.go Remove runtime-bundle image dependencies 2026-03-21 18:34:53 -03:00
fastpath_test.go Manage image artifacts and show VM create progress 2026-03-21 14:48:01 -03:00
guest_sessions.go Add guest.session.send and vm.workspace.export RPCs 2026-04-14 15:21:50 -03:00
guest_sessions_test.go Add guest.session.send and vm.workspace.export RPCs 2026-04-14 15:21:50 -03:00
image_build_ops.go Serve a local web UI from bangerd 2026-03-21 16:47:47 -03:00
image_seed.go Manage image artifacts and show VM create progress 2026-03-21 14:48:01 -03:00
imagebuild.go Install claude and pi through mise 2026-04-13 18:29:02 -03:00
imagebuild_test.go Install claude and pi through mise 2026-04-13 18:29:02 -03:00
images.go Remove runtime-bundle image dependencies 2026-03-21 18:34:53 -03:00
logger.go Speed up VM create with work seeds 2026-03-18 21:22:12 -03:00
logger_test.go Remove runtime-bundle image dependencies 2026-03-21 18:34:53 -03:00
nat.go Move helper NAT management into Go 2026-03-17 15:07:49 -03:00
nat_test.go Move helper NAT management into Go 2026-03-17 15:07:49 -03:00
opencode.go Manage image artifacts and show VM create progress 2026-03-21 14:48:01 -03:00
ports.go Refine vm ports output 2026-03-19 18:21:04 -03:00
preflight.go Remove runtime-bundle image dependencies 2026-03-21 18:34:53 -03:00
runtime_assets.go Remove runtime-bundle image dependencies 2026-03-21 18:34:53 -03:00
snapshot.go Harden VM stop cleanup for stale snapshots 2026-03-18 12:28:15 -03:00
snapshot_test.go Harden VM stop cleanup for stale snapshots 2026-03-18 12:28:15 -03:00
ssh_client_config.go Configure direct SSH access for .vm hosts 2026-03-22 16:48:42 -03:00
ssh_client_config_test.go Configure direct SSH access for .vm hosts 2026-03-22 16:48:42 -03:00
tap_pool.go Speed up VM create with work seeds 2026-03-18 21:22:12 -03:00
vm.go Add guest sessions and agent VM defaults 2026-04-12 23:48:42 -03:00
vm_create_ops.go Manage image artifacts and show VM create progress 2026-03-21 14:48:01 -03:00
vm_test.go Add guest sessions and agent VM defaults 2026-04-12 23:48:42 -03:00
web.go Serve a local web UI from bangerd 2026-03-21 16:47:47 -03:00
workspace.go workspace.export: add base_commit to capture worker git commits 2026-04-14 16:13:05 -03:00
workspace_test.go workspace.export: add base_commit to capture worker git commits 2026-04-14 16:13:05 -03:00