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Neil
cdb889b46a
The guard called GetProcessId(hShell) to prove identity, but the exit watcher closes hShell on another thread -- so the guard could read a closed handle, and under strict handle checks that is fatal rather than merely wrong. Worse, it widened the gap between validating hJob and using it from two instructions to a kernel round-trip, and handle values recycle: the likeliest occupant of a freshly recycled value in this process is another pane's job. The pid never needed a handle. It is captured at spawn and compared as a DWORD, so the guard touches no handle at all, and hShell is now closed inside the same lock as hJob. Also from review: - reject CR/LF in a cmd argument. cmd ends the command at a raw line break whatever the quote state, so there is no escape for it; encoding one anyway truncates the argument and can leave the remainder to run as a command. Agent prompts are this encoder's motivating input. - ask the process table only for the fields a caller needs. Memory and CommandLine each cost an OpenProcess per process, inline, for every process on the box -- and the 1024 bound is patched out. Ancestry reads now skip both. - corpus gains the degenerate quote-only and two-quote arguments. - PtyListJobProcessIds' docblock still taught the empty-list contract that was corrected on the TS side, and now records that the ConPTY console host is never a job member. - drop a write to NumberOfAssignedProcesses, which is output-only. - pty_baton::hShell is initialised; ownsShell was only safe because && short-circuited ahead of it. The backgrounded-child test is rescoped: 'start /b' uses CREATE_NEW_CONSOLE, not CREATE_BREAKAWAY_FROM_JOB, so it proves job membership does not block backgrounding -- not that BREAKAWAY_OK works. That flag rests on the Win32 contract, and I have said so rather than letting the test imply coverage it does not have.