Andreas Kling 8c5cd97b45 Kernel: Fix kernel null deref on process crash during join_thread() ... The join_thread() syscall is not supposed to be interruptible by signals, but it was. And since the process death mechanism piggybacked on signal interrupts, it was possible to interrupt a pthread_join() by killing the process that was doing it, leading to confusing due to some assumptions being made by Thread::finalize() for threads that have a pending joiner. This patch fixes the issue by making "interrupted by death" a distinct block result separate from "interrupted by signal". Then we handle that state in join_thread() and tidy things up so that thread finalization doesn't get confused by the pending joiner being gone. Test: Tests/Kernel/null-deref-crash-during-pthread_join.cpp		2020-01-10 19:23:45 +01:00
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Kernel	Kernel: Fix kernel null deref on process crash during join_thread()	2020-01-10 19:23:45 +01:00