From 013bf10824210a6270e4b9d349a22c8afbdadc76 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Mon, 26 Oct 2026 06:11:57 +0100
Subject: fix race between alive check and forgetting

---
 src/api/peers.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/api/peers.rs')

diff --git a/src/api/peers.rs b/src/api/peers.rs
index e22f3cd..eb522b0 100644
--- a/src/api/peers.rs
+++ b/src/api/peers.rs
@@ -235,7 +235,14 @@ pub(crate) async fn delete_peer(
         .await
         .map_err(|e| store_status(e, "Failed to write forget record"))?;
 
-    if state.peer_states.write().await.remove(&peer).is_some() {
+    // Unless forced, a peer that came alive since the check above stays: it cancels
+    // the record.
+    let forgotten = if force.allows("alive") {
+        state.peer_states.write().await.remove(&peer).is_some()
+    } else {
+        crate::swarm::peer::forget_unless_alive(&state, &peer, Instant::now()).await
+    };
+    if forgotten {
         warn!(peer = %peer, "Peer forgotten swarm-wide by operator");
     }
 
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