https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7b0d2d1e92f60524b8d93a02282c7d4e9021e9b6 commit 7b0d2d1e92f60524b8d93a02282c7d4e9021e9b6 Author: Takashi Yano <takashi.yano@nifty.ne.jp> Date: Mon May 9 00:54:35 2022 +0900 Cygwin: pty: Add missing attach_mutex guard. Diff: --- winsup/cygwin/fhandler_tty.cc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc index 31f399f99..0cd69f3ca 100644 --- a/winsup/cygwin/fhandler_tty.cc +++ b/winsup/cygwin/fhandler_tty.cc @@ -3497,6 +3497,7 @@ skip_create: HeapFree (GetProcessHeap (), 0, hp); } + acquire_attach_mutex (mutex_timeout); if (get_ttyp ()->previous_code_page) SetConsoleCP (get_ttyp ()->previous_code_page); if (get_ttyp ()->previous_output_code_page) @@ -3527,6 +3528,7 @@ skip_create: mode |= DISABLE_NEWLINE_AUTO_RETURN; SetConsoleMode (hpConOut, mode); } + release_attach_mutex (); return true;