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Date:	Fri, 29 Apr 2022 18:25:26 +0000 (UTC)
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
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	<20220429180414 DOT b3a0572687203fda213f878d AT nifty DOT ne DOT jp>
Subject:	Re: cygdll 3.3.4 breaks cygpath.exe. mistyped commands result in
	fork bomb
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 --- Process 25852 created--- Process 25852 loaded C:\Windows\System32\ntdll.dll at 00007fffa01b0000--- Process 25852 loaded C:\Windows\System32\kernel32.dll at 00007fff9eef0000--- Process 25852 loaded C:\Windows\System32\KernelBase.dll at 00007fff9db00000--- Process 25852 loaded C:\Program Files\SentinelOne\Sentinel Agent 21.7.4.1043\InProcessClient64.dll at 00007fff9d480000--- Process 25852 loaded C:\Windows\System32\advapi32.dll at 00007fff9f8a0000--- Process 25852 loaded C:\Windows\System32\msvcrt.dll at 00007fffa00d0000--- Process 25852 thread 20692 created--- Process 25852 loaded C:\Windows\System32\sechost.dll at 00007fff9edc0000--- Process 25852 loaded C:\Windows\System32\rpcrt4.dll at 00007fff9ff30000--- Process 25852 thread 25940 created--- Process 25852 thread 22408 created--- Process 25852 loaded C:\Windows\System32\shell32.dll at 00007fff9e210000--- Process 25852 loaded C:\Windows\System32\msvcp_win.dll at 00007fff9de60000--- Process 25852 loaded C:\cyg64\bin\cygwin1.dll at 0000000180040000--- Process 25852 loaded C:\Windows\System32\ucrtbase.dll at 00007fff9d980000--- Process 25852 loaded C:\Windows\System32\user32.dll at 00007fff9e9c0000--- Process 25852 loaded C:\Windows\System32\win32u.dll at 00007fff9e080000--- Process 25852 loaded C:\Windows\System32\gdi32.dll at 00007fff9ee60000--- Process 25852 loaded C:\Windows\System32\gdi32full.dll at 00007fff9df70000--- Process 25852 loaded C:\Windows\System32\userenv.dll at 00007fff9d790000--- Process 25852 loaded C:\Windows\System32\imm32.dll at 00007fff9eca0000

  327     329 [main] cygpath (25852) Program name: C:\cyg64\bin\cygpath.exe (windows pid 25852)  248     577 [main] cygpath (25852) OS version:   Windows NT-10.0  288     865 [main] cygpath (25852) **********************************************--- Process 25852 loaded C:\Windows\System32\cryptbase.dll at 00007fff9cef0000--- Process 25852 loaded C:\Windows\System32\bcryptprimitives.dll at 00007fff9ddd0000 5888    6753 [main] cygpath (25852) sigprocmask: 0 = sigprocmask (0, 0x0, 0x180321570)  735    7488 [main] cygpath (25852) open_shared: name shared.5, n 5, shared 0x180030000 (wanted 0x180030000), h 0x184, *m 6  210    7698 [main] cygpath (25852) user_heap_info::init: heap base 0x800000000, heap top 0x800000000, heap size 0x20000000 (536870912)  175    7873 [main] cygpath (25852) open_shared: name S-1-5-21-1343024091-839522115-1708537768-180174.1, n 1, shared 0x180020000 (wanted 0x180020000), h 0x180, *m 6  160    8033 [main] cygpath (25852) user_info::create: opening user shared for 'S-1-5-21-1343024091-839522115-1708537768-180174' at 0x180020000  157    8190 [main] cygpath (25852) user_info::create: user shared version AB1FCCE8  112    8302 [main] cygpath (25852) fhandler_pipe::create: name \\.\pipe\cygwin-d9238e605d902b75-25852-sigwait, size 11440, mode PIPE_TYPE_MESSAGE  230    8532 [main] cygpath (25852) fhandler_pipe::create: pipe read handle 0x98  160    8692 [main] cygpath (25852) fhandler_pipe::create: CreateFile: name \\.\pipe\cygwin-d9238e605d902b75-25852-sigwait  145    8837 [main] cygpath (25852) fhandler_pipe::create: pipe write handle 0x198  142    8979 [main] cygpath (25852) dll_crt0_0: finished dll_crt0_0 initialization--- Process 25852 thread 17084 created--- Process 25852, exception c0000005 at 00000001801390e4--- Process 25852, exception 80000001 at 00007fff9d4c9767--- Process 25852 thread 25940 exited with status 0x80000001--- Process 25852 thread 22408 exited with status 0x80000001--- Process 25852 thread 17084 exited with status 0x80000001--- P
rocess 25852 thread 17688 exited with status 0x80000001--- Process 25852 exited with status 0x80000001

hmm so downgraded to 3.3.3 again and the program runs. But if I use strace the process gets half-killed. Trying to exit from '--help' Ctrl-C results in repeated lines like so and I have to force-close the window 
--- Process 14340, exception c0000005 at 000000018013875c--- Process 14340 thread 28092 created--- Process 14340 thread 22872 created--- Process 14340, exception 40010005 at 00007fff9dbbd67312655695 12666948 [] cygpath (14340) _cygtls::remove: wait 0--- Process 14340 thread 22872 exited with status 0x0--- Process 14340 thread 19264 created--- Process 14340 thread 22068 created--- Process 14340, exception 40010005 at 00007fff9dbbd673--- Process 14340, exception 40010005 at 00007fff9dbbd673

All because I decided to upgrade my installation which had been perfectly fine for well over a year...

    On Friday, April 29, 2022, 05:04:23 AM EDT, Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp> wrote:  
 
 On Fri, 29 Apr 2022 00:22:09 +0000 (UTC)
matthew patton wrote:
> I had to revert to 3.3.3-1 to restore functionality.with 3.3.4 invoking cygpath would cause an Access Violation Exception (0x05) and kill the thread so that I couldn't even do a 'cygpath --help' 
> 
> All of a sudden I also am experiencing fork bombs if I type an invalid command. eg. type 'l' instead of 'ls' and ENTER, it spawns hundreds of 'bash.exe' processes. A half dozen 'pkill -9 bash.exe' heads off calamity. 

That does not happen to me.

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
  

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