ipn/ipnlocal: fix race condition that results in a panic sending on a closed channel

Fixes #13288 Signed-off-by: Nick Khyl <nickk@tailscale.com>
2024-08-27 23:11:00 -05:00
parent 35423fcf69
commit 959285e0c5
3 changed files with 21 additions and 6 deletions
@@ -331,7 +331,7 @@ func (b *LocalBackend) setServeConfigLocked(config *ipn.ServeConfig, etag string
 			if !has(k) {
 				for _, sess := range b.notifyWatchers {
 					if sess.sessionID == k {
-						close(sess.ch)
+						sess.cancel()
 					}
 				}
 			}