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wangyongrong
f20f9ff19e
When CONFIG_DISABLE_PTHREAD=y, HAVE_GROUP_MEMBERS is undefined and group_leave() unconditionally calls group_release() for every exiting thread. This destroys the shared g_kthread_group resources (mutex, fdlist, task_info) while other kernel threads are still using them, causing use-after-free crashes. Fix by checking TCB_FLAG_TTYPE_KERNEL in group_leave() before calling group_release(), so the entire release path is skipped for kernel threads. This is safe because g_kthread_group is statically allocated and its lifetime is the entire system. Signed-off-by: wangyongrong <wangyongrong@xiaomi.com>