On 2023-11-26 10:12, Matthias--- via Cygwin wrote:
Am Samstag, dem 25.11.2023 um 19:45 +0100 schrieb ASSI via Cygwin:
Matthias--- via Cygwin writes:
Yes - That's the reason in my VM too:
strace ssh-keygen -A
--- Process 8280 loaded C:\Windows\System32\ntmarta.dll at 00007ffcbc790000
--- Process 8280 thread 12528 created
--- Process 8280 thread 15124 created
--- Process 8280 thread 3324 created
--- Process 8280, exception c0000005 at 0000000000000000
--- Process 8280 thread 12528 exited with status 0x0
--- Process 8280 loaded C:\Windows\System32\kernel.appcore.dll at
00007ffcbb550000
--- Process 8280 thread 13908 exited with status 0xc0000005
--- Process 8280 thread 3324 exited with status 0xc0000005
--- Process 8280 exited with status 0xc0000005
Segmentation fault
I'm fairly certain that this is not Cygwin's ssh-keygen…
I believe it is Cygwin's ssh-keygen because it is loading cygwin dlls too:
strace /usr/bin/ssh-keygen.exe -A
--- Process 14116 created
--- Process 14116 loaded C:\Windows\System32\ntdll.dll at 00007ffcbff90000
--- Process 14116 loaded C:\Windows\System32\kernel32.dll at
00007ffcbe610000
--- Process 14116 loaded C:\Windows\System32\KernelBase.dll at
00007ffcbd710000
--- Process 14116 loaded C:\Windows\System32\apphelp.dll at 00007ffcbaea0000
--- Process 14116 loaded C:\cygwin64\bin\cygcrypto-3.dll at 00000003ff8c0000
--- Process 14116 loaded C:\cygwin64\bin\cygwin1.dll at 00007ffc74c90000
--- Process 14116 loaded C:\cygwin64\bin\cyggcc_s-seh-1.dll at
00000003ff790000
--- Process 14116 loaded C:\cygwin64\bin\cygz.dll at 00000003feb50000
1 1 [main] ssh-keygen (14116)
**********************************************
279 280 [main] ssh-keygen (14116) Program name:
C:\cygwin64\bin\ssh-keygen.exe (windows pid
14116)
190 470 [main] ssh-keygen (14116) OS version: Windows NT-10.0
125 595 [main] ssh-keygen (14116)
**********************************************
--- Process 14116 loaded C:\Windows\System32\advapi32.dll at
00007ffcbfac0000
:
--- Process 14116 loaded C:\Windows\System32\ntmarta.dll at 00007ffcbc790000
--- Process 14116 thread 15044 created
--- Process 14116 thread 10544 created
--- Process 14116 thread 13588 created
--- Process 14116, exception c0000005 at 0000000000000000
--- Process 14116 thread 15044 exited with status 0x0
--- Process 14116 thread 10544 exited with status 0xc0000005
--- Process 14116 thread 14316 exited with status 0xc0000005
--- Process 14116 exited with status 0xc0000005
Segmentation fault
The Windows OpenSSH-Client is also installed in my VM:
strace /cygdrive/C/Windows/System32/OpenSSH/ssh-keygen.exe -A
--- Process 12532 created
--- Process 12532 loaded C:\Windows\System32\ntdll.dll at 00007ffcbff90000
--- Process 12532 loaded C:\Windows\System32\kernel32.dll at
00007ffcbe610000
--- Process 12532 loaded C:\Windows\System32\KernelBase.dll at
00007ffcbd710000
--- Process 12532 loaded C:\Windows\System32\apphelp.dll at 00007ffcbaea0000
:
--- Process 12532 loaded C:\Windows\System32\winrnr.dll at 00007ffc77150000
ssh-keygen: generating new host keys: RSA DSA ECDSA ED25519
--- Process 12532 unloaded DLL at 00007ffc77110000
:
and all keys are created in C:\ProgramData\ssh
So it looks like cygwin ssh-keygen.exe have a problem :(
BTW: similar Segmentation faults I have with "strace /usr/sbin/sshd.exe --help"
as well as with
"strace /usr/bin/ssh.exe --help".
Both are loading cygwin dlls like cygcrypt-2.dll or cygiconv-2.dll as well as
Windows dlls like
ntdll.dll or kernel32.dll.
Any hints?
That intercept does not run under strace on my Win 10 latest patches system.
My strace shows DHCP contacted before running gethostname, then keygens.
Does this system run a legacy A/V?
Add to BLODA? - legacy embedded security provider interface:
https://learn.microsoft.com/en-us/previous-versions/windows/embedded/aa939264(v=winembedded.5)?redirectedfrom=MSDN
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
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