iPhone8 - scp seems broken since openssh-client=9.2p1 (was ok in 8.8)

[bigrck64]

Hello !

Since latest scp update (openssh-client_9.2p1_iphoneos-arm.deb), I'm no more able to use SCP on my synology nas, I got the error:
subsystem request failed on channel 0 scp: Connection closed

When reverting to 8.8p1, no more problem
dpkg -i openssh-client_8.8p1_iphoneos-arm.deb
I can SCP any file from / to my NAS.

How can I help to debug this ?
Thanks for this awesome repo !

[CRKatri]

Can you run with -vvv? Thank you

[Teutates]

@bigrck64 what iOS version and jailbreak is this?

[bigrck64]

So my jailbreak is Taurine 1.1.5 on iOS 14.3
The SCP problem is occuring when I'm trying to upload a file on one Synology NAS (up to date).
No problem with 8.8p1, no more working with 9.2p1, here are the logs with -vvv

8.8p1_ok.txt

9.2p1_failed.txt

[CRKatri]

Could you try with -O in the flags? It seems to be an issue with sftp being the backend for scp, which -O will disable.

[bigrck64]

Good find !
File upload is okay with -O, here is the log:

9.2p1_with-O_ok.txt