failed to checkout kernel repo git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/linux-5.15.y: failed to run ["git" "fetch" "--force" "8f2623253652e0544564638083e44431e97717e2" "linux-5.15.y"]: exit status 128
fatal: unable to connect to git.kernel.org:
git.kernel.org[0: 172.105.4.254]: errno=Connection refused
git.kernel.org[1: 2600:3c04:e001:324:0:1991:8:25]: errno=Network is unreachable