GUIDINGLI opened a new pull request, #10668:
URL: https://github.com/apache/nuttx/pull/10668
## Summary
wqueue: add work_cancel_sync() support
signal: use work_cancel_sync() to fix used after free
user thread: hpwork:
timer_create() with SIGEV_THREAD
timer_settime()
irq -> work_queue() add nxsig_notification_worker
to Q
timer_delete()
nxsig_cancel_notification()
call nxsig_notification_worker()
work_cancel()
timer_free()
nxsig_notification_worker()
used after free
root cause:
work_cancel() can't cancel work completely, the worker may alreay be
running.
resolve:
use work_cancel_sync() API to cancel the work completely
## Impact
work queue
## Testing
BES board & SIM
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