2 files changed, 6 insertions, 2 deletions

diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 03e56471d8..bb83462461 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -1028,7 +1028,7 @@ def try_mirror_url(fetch, origud, ud, ld, check = False):
         raise
 
     except IOError as e:
-        if e.errno in [os.errno.ESTALE]:
+        if e.errno in [errno.ESTALE]:
             logger.warning("Stale Error Observed %s." % ud.url)
             return False
         raise
@@ -1717,7 +1717,7 @@ class Fetch(object):
                 update_stamp(ud, self.d)
 
             except IOError as e:
-                if e.errno in [os.errno.ESTALE]:
+                if e.errno in [errno.ESTALE]:
                     logger.error("Stale Error Observed %s." % u)
                     raise ChecksumError("Stale Error Detected")
 
diff --git a/bitbake/lib/bb/fetch2/git.py b/bitbake/lib/bb/fetch2/git.py
index b5d6f99de2..0f215de644 100644
--- a/bitbake/lib/bb/fetch2/git.py
+++ b/bitbake/lib/bb/fetch2/git.py
@@ -152,6 +152,10 @@ class Git(FetchMethod):
             ud.proto = 'file'
         else:
             ud.proto = "git"
+        if ud.host == "github.com" and ud.proto == "git":
+            # github stopped supporting git protocol
+            # https://github.blog/2021-09-01-improving-git-protocol-security-github/#no-more-unauthenticated-git
+            ud.proto = "https"
 
         if not ud.proto in ('git', 'file', 'ssh', 'http', 'https', 'rsync'):
             raise bb.fetch2.ParameterError("Invalid protocol type", ud.url)