output_thread: Validate a magic for cleaning up correctly on macOS

cosmo0920 · edsiper · commit ef58c5382aca · 2025-11-05T20:19:30.000-06:00
This is because TLS of macOS's pthread may return garbage values on
unset.

Signed-off-by: Hiroshi Hatake &lt;hiroshi@chronosphere.io&gt;
diff --git a/src/flb_output_thread.c b/src/flb_output_thread.c
@@ -402,7 +402,7 @@ static void output_thread(void *data)
     }
 
     sched_params = (struct flb_sched_timer_coro_cb_params *) FLB_TLS_GET(sched_timer_coro_cb_params);
-    if (sched_params != NULL) {
+    if (sched_params != NULL && sched_params->magic == FLB_SCHED_TLS_MAGIC) {
         flb_free(sched_params);
         FLB_TLS_SET(sched_timer_coro_cb_params, NULL);
     }

Original file line number	Diff line number	Diff line change
`@@ -402,7 +402,7 @@ static void output_thread(void *data)`
`402`	`402`	`}`
`403`	`403`
`404`	`404`	`sched_params = (struct flb_sched_timer_coro_cb_params *) FLB_TLS_GET(sched_timer_coro_cb_params);`
`405`		`- if (sched_params != NULL) {`
	`405`	`+ if (sched_params != NULL && sched_params->magic == FLB_SCHED_TLS_MAGIC) {`
`406`	`406`	`flb_free(sched_params);`
`407`	`407`	`FLB_TLS_SET(sched_timer_coro_cb_params, NULL);`
`408`	`408`	`}`