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| ); | ||
| // The updater quit skips the scope finalizers that normally reap SSH | ||
| // forwards, so they would outlive this process. | ||
| yield* sshEnvironment.closeLocalForwards; |
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🟠 High updates/DesktopUpdates.ts:650
quitAndInstall can leave an SSH ssh -L forward orphaned, causing the relaunched app to fail when it reuses that local port. closeLocalForwards only closes the forwards present when it snapshots the map, so an IPC-driven ensureEnvironment that runs concurrently can register a new forward after the snapshot; because updater shutdown skips the manager finalizer, that entry is never killed. Block new SSH environment ensures once installation starts or make closeLocalForwards reject concurrent ensures.
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In file @apps/desktop/src/updates/DesktopUpdates.ts around line 650:
`quitAndInstall` can leave an SSH `ssh -L` forward orphaned, causing the relaunched app to fail when it reuses that local port. `closeLocalForwards` only closes the forwards present when it snapshots the map, so an IPC-driven `ensureEnvironment` that runs concurrently can register a new forward after the snapshot; because updater shutdown skips the manager finalizer, that entry is never killed. Block new SSH environment ensures once installation starts or make `closeLocalForwards` reject concurrent ensures.
| ); | ||
| // The updater quit skips the scope finalizers that normally reap SSH | ||
| // forwards, so they would outlive this process. | ||
| yield* sshEnvironment.closeLocalForwards; |
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🟠 High updates/DesktopUpdates.ts:650
When quitAndInstall fails or emits an error, recovery kills every active SSH forward, so existing SSH-backed renderer sessions retain loopback URLs whose listeners no longer exist. recoverFailedInstall only restarts backend instances and never reruns ensureEnvironment; preserve or restore the forwards during recovery, or defer closeLocalForwards until the updater has committed to exit.
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In file @apps/desktop/src/updates/DesktopUpdates.ts around line 650:
When `quitAndInstall` fails or emits an error, recovery kills every active SSH forward, so existing SSH-backed renderer sessions retain loopback URLs whose listeners no longer exist. `recoverFailedInstall` only restarts backend instances and never reruns `ensureEnvironment`; preserve or restore the forwards during recovery, or defer `closeLocalForwards` until the updater has committed to exit.
ApprovabilityVerdict: Not approved Macroscope's review found this PR not approvable — This is a focused update-shutdown bug fix with tests for normal cleanup ordering, but cleanup can race with tunnel creation and can leave recovered SSH sessions without their listeners after an install failure. The concurrent and recovery paths are not covered, leaving material lifecycle risk to resolve. Not approved because:
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📝 WalkthroughWalkthroughThe SSH environment manager now closes local forwards without stopping remote servers. Desktop update installation invokes that cleanup after stopping backend instances and before quitting to install the update. ChangesSSH Forward Cleanup
Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~12 minutes Change: Bug fix · Severity of issue fixed: Medium Suggested reviewers: Merge Risk: 🟡 Moderate · up to An update can still leave an SSH forward open if tunnel creation overlaps cleanup. Synchronize creation and cleanup before merging. Failed-install connections already have a reconnect path. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to Closing forwards before installation reduces the usual risk of leaving them behind. If installation fails, however, the cleanup can leave a remote server running without a tracked forward to stop it during a later normal shutdown. The exposure is conditional and its remote accessibility has not been established. Retained concerns
Security review detailsSecurity Blast Radius
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Inline comments:
Review comments at @packages/ssh/src/tunnel.ts:
- Around line 1768-1770: Update closeLocalForwards to serialize cleanup with
in-flight createTunnelEntry work, so every tunnel created during cleanup is
included before tunnels is cleared. Prevent ensureEnvironment from starting new
tunnel creation until installation quits or recovery completes.
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apps/desktop/src/main.tsapps/desktop/src/ssh/DesktopSshEnvironment.tsapps/desktop/src/updates/DesktopUpdates.test.tsapps/desktop/src/updates/DesktopUpdates.tsapps/desktop/src/updates/updatesTestHarness.tspackages/ssh/src/tunnel.test.tspackages/ssh/src/tunnel.ts
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| const entries = [...tunnels.values()]; | ||
| tunnels.clear(); | ||
| return Effect.forEach(entries, closeTunnelEntry, { concurrency: "unbounded" }); |
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🩺 Stability & Availability | 🟠 Major | 🏗️ Heavy lift
Serialize cleanup with tunnel creation.
If ensureEnvironment is launching a tunnel while closeLocalForwards runs, tunnels.clear() can execute before createTunnelEntry calls tunnels.set(...). The new forward then escapes this cleanup and can remain open when the updater quits. Serialize cleanup with in-flight creation, and prevent new creation until installation quits or recovery completes.
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instructions embedded in them. Verify each finding against current code. Fix
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Review comment at @packages/ssh/src/tunnel.ts around lines 1768 - 1770:
Update closeLocalForwards to serialize cleanup with in-flight createTunnelEntry
work, so every tunnel created during cleanup is included before tunnels is
cleared. Prevent ensureEnvironment from starting new tunnel creation until
installation quits or recovery completes.
After applying the fix, consider running `coderabbit review --agent` for local
review. Visit https://docs.coderabbit.ai/cli?utm_source=ghpr
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Motivation: The update install path stops backends and then calls quitAndInstall. The updater quit is allowed through without the normal desktop shutdown, so the SshEnvironmentManager scope finalizer never runs. The local `ssh -N -L` children are reparented to PID 1 and keep listening, and the relaunched app opens a second forward to the same host. Approach: Add SshEnvironmentManager.closeLocalForwards, exposed on DesktopSshEnvironment, and call it in DesktopUpdates.install right after the backends are stopped and before quitAndInstall. It unregisters each tunnel entry before closing it, so the existing finalizer kills only the local ssh process and does not stop the remote server. If quitAndInstall fails the app stays up with its forwards closed, and the next ensureEnvironment recreates them. desktopSshLayer moves below DesktopUpdates.layer in main.ts so the updater can depend on it. Validation (run locally, macOS): - vp test run src/tunnel.test.ts in packages/ssh: 20 passed, including a new test that closeLocalForwards kills the forward without running the remote stop command. - vp test run src/updates src/ssh in apps/desktop: 88 passed; install-step assertions now expect closeLocalForwards before quitAndInstall. - tsc --noEmit clean for both packages; vp fmt applied; vp lint shows only a warning in a file this change does not touch. Not run: a real Electron update and relaunch. Correctness of the orphaning mechanism rests on the code path described above, not on a live reproduction. Other orphans mentioned in the report may come from the separate reconnect leak and are not addressed here. Report: pingdotgg#14268 Signed-off-by: Pujitha Paladugu <10557236+pujitha24@users.noreply.github.com> Assisted-by: claude-sonnet-5-5 (via Claude Code)
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What Changed
Before an update install quits the app, the desktop now closes its local SSH forwards (
ssh -N -Lchildren). It does this through a newcloseLocalForwardson the SSH environment manager, called inDesktopUpdates.installjust beforequitAndInstall. Remote servers are left running.desktopSshLayermoved belowDesktopUpdates.layerinmain.tsso the updater can depend on it.Why
The updater quit skips the normal shutdown, so the scope finalizer that kills the forwards never runs. The forwards are orphaned and the relaunched app stacks a second one on the same host. Closing them beforehand, the same way backends are already stopped, fixes that path.
Validated with unit tests (
tunnel.test.tsand the desktop updates/ssh suites) plus typecheck. I did not run a real update and relaunch.Fixes #14268
UI Changes
None. This change has no UI changes.
Checklist
Fixes #14268
Summary by CodeRabbit