[PATCH v7 02/10] fsmonitor: fix hashmap memory leak in fsmonitor_run_daemon

From: Paul Tarjan via GitGitGadget <gitgitgadget@gmail.com>
Date: Feb 26, 2026, 00:27 UTC
Message-ID: <d0bd3e32ca32b4150054ea91aa774a5b2db427e5.1772065643.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.2147.v7.git.git.1772065643.gitgitgadget@gmail.com>

From: Paul Tarjan <github@paulisageek.com>

The `state.cookies` hashmap is initialized during daemon startup but never freed during cleanup in the `done:` label of fsmonitor_run_daemon(). Add a hashmap_clear() call to prevent this memory leak.

Signed-off-by: Paul Tarjan <github@paulisageek.com>
---
 builtin/fsmonitor--daemon.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/builtin/fsmonitor--daemon.c b/builtin/fsmonitor--daemon.c
index bc4571938c..4d52622e24 100644
--- a/builtin/fsmonitor--daemon.c
+++ b/builtin/fsmonitor--daemon.c
@@ -1404,6 +1404,7 @@ static int fsmonitor_run_daemon(void)
 done:
 	pthread_cond_destroy(&state.cookies_cond);
 	pthread_mutex_destroy(&state.main_lock);
+	hashmap_clear(&state.cookies);
 	fsm_listen__dtor(&state);
 	fsm_health__dtor(&state);

-- 
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