[google/syzkaller] 56203b: tools/create-gce-image.sh: enable sftp in ssh daemon

[Alexander Egorenkov]

Branch: refs/heads/master
Home: https://github.com/google/syzkaller
Commit: 56203b01f20ba941a9a9eee6c390a937658c9496
https://github.com/google/syzkaller/commit/56203b01f20ba941a9a9eee6c390a937658c9496
Author: Alexander Egorenkov <eai...@gmail.com>
Date: 2022-05-10 (Tue, 10 May 2022)

Changed paths:
M pkg/build/linux_generated.go
M tools/create-gce-image.sh

Log Message:
-----------
tools/create-gce-image.sh: enable sftp in ssh daemon

If we don't enable SFTP in SSH daemon, then scp will not work w/o -O option.

Fixes:

syz-ci-devel | 2022/05/10 09:01:23 syz-ci-devel-kasan: VM testing failed
with: failed to copy test binary to VM: failed to run ["scp" "-P" "55610"
"-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes"
"-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o"
"ConnectTimeout=10" "/workdir/syzkaller/current/bin/linux_s390x/syz-fuzzer"
"root@localhost:/syz-fuzzer"]: exit status 255
syz-ci-devel | Warning: Permanently added '[localhost]:55610' (ED25519)
to the list of known hosts.
syz-ci-devel | subsystem request failed on channel 0
syz-ci-devel | scp: Connection closed

Signed-off-by: Alexander Egorenkov <eai...@gmail.com>