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3ba70490c9
Inadequate locking in the esp_timer component allowed corruption of the s_timers linked list: 1. timer_armed(timer) returns false 2. another task arms the timer and adds it to s_timers 3. the list is locked 4. the timer is inserted into s_timers again The last step results in a loop in the s_timers list, which causes an infinite loop when iterated. This change always locks the list before checking if the timer is already armed avoiding the data race.