From b58b5a96601f9e7424e4cb21aa0b9b2915daa49c Mon Sep 17 00:00:00 2001 From: Takashi Yano Date: Mon, 11 Apr 2022 10:44:41 +0900 Subject: [PATCH] Cygwin: pty: Do not set internal handles in HPCON inheritable. - The internal handles in HPCON should not be inheritable, however, the current code duplicates them as inheritable when handing over ownership of the pseudo console. This patch fixes the issue. Addresses: https://cygwin.com/pipermail/cygwin/2022-April/251222.html --- winsup/cygwin/fhandler_tty.cc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc index c02dfb8ed..484bf55dc 100644 --- a/winsup/cygwin/fhandler_tty.cc +++ b/winsup/cygwin/fhandler_tty.cc @@ -2056,7 +2056,7 @@ fhandler_pty_common::resize_pseudo_console (struct winsize *ws) OpenProcess (PROCESS_DUP_HANDLE, FALSE, get_ttyp ()->nat_pipe_owner_pid); DuplicateHandle (pcon_owner, get_ttyp ()->h_pcon_write_pipe, GetCurrentProcess (), &hpcon_local.hWritePipe, - 0, TRUE, DUPLICATE_SAME_ACCESS); + 0, FALSE, DUPLICATE_SAME_ACCESS); acquire_attach_mutex (mutex_timeout); ResizePseudoConsole ((HPCON) &hpcon_local, size); release_attach_mutex (); @@ -3551,15 +3551,15 @@ fhandler_pty_slave::close_pseudoconsole (tty *ttyp, DWORD force_switch_to) DuplicateHandle (GetCurrentProcess (), ttyp->h_pcon_write_pipe, new_owner, &new_write_pipe, - 0, TRUE, DUPLICATE_SAME_ACCESS); + 0, FALSE, DUPLICATE_SAME_ACCESS); DuplicateHandle (GetCurrentProcess (), ttyp->h_pcon_condrv_reference, new_owner, &new_condrv_reference, - 0, TRUE, DUPLICATE_SAME_ACCESS); + 0, FALSE, DUPLICATE_SAME_ACCESS); DuplicateHandle (GetCurrentProcess (), ttyp->h_pcon_conhost_process, new_owner, &new_conhost_process, - 0, TRUE, DUPLICATE_SAME_ACCESS); + 0, FALSE, DUPLICATE_SAME_ACCESS); DuplicateHandle (GetCurrentProcess (), ttyp->h_pcon_in, new_owner, &new_pcon_in, 0, TRUE, DUPLICATE_SAME_ACCESS);