diff --git a/stdlib/@tests/stubtest_allowlists/linux-py312.txt b/stdlib/@tests/stubtest_allowlists/linux-py312.txt
index 9951806f9..9e3c22e70 100644
--- a/stdlib/@tests/stubtest_allowlists/linux-py312.txt
+++ b/stdlib/@tests/stubtest_allowlists/linux-py312.txt
@@ -1,7 +1,3 @@
-# Exists on some Linux builds, and is documented,
-# but is unavailable in Github Actions on Linux with Python 3.12
-(os|posix).CLONE_NEWTIME
-
 # Exists at runtime, but missing from stubs
 spwd.struct_spwd.sp_nam
 spwd.struct_spwd.sp_pwd
diff --git a/stdlib/@tests/stubtest_allowlists/linux-py313.txt b/stdlib/@tests/stubtest_allowlists/linux-py313.txt
index 365e2626a..810107738 100644
--- a/stdlib/@tests/stubtest_allowlists/linux-py313.txt
+++ b/stdlib/@tests/stubtest_allowlists/linux-py313.txt
@@ -60,7 +60,3 @@ syslog.LOG_LAUNCHD
 syslog.LOG_NETINFO
 syslog.LOG_RAS
 syslog.LOG_REMOTEAUTH
-
-# Exists on some Linux builds, and is documented,
-# but is unavailable in Github Actions on Linux with Python 3.12
-(os|posix).CLONE_NEWTIME
diff --git a/stdlib/@tests/stubtest_allowlists/linux.txt b/stdlib/@tests/stubtest_allowlists/linux.txt
index 0e98477c2..0c66b6bb6 100644
--- a/stdlib/@tests/stubtest_allowlists/linux.txt
+++ b/stdlib/@tests/stubtest_allowlists/linux.txt
@@ -1,3 +1,7 @@
+# ==========
+# TODO: Review the following
+# ==========
+
 _socket.*
 _posixsubprocess.cloexec_pipe
 curses.has_key
@@ -5,11 +9,6 @@ os.plock
 selectors.KqueueSelector
 socket.[A-Z0-9_]+
 
-# Platform differences that cannot be captured by the type system
-(posix.O_[A-Z_]+)?
-(posix.ST_[A-Z]+)?
-(termios.[A-Z0-9_]+)?
-
 _ctypes.dlclose
 _ctypes.dlopen
 _ctypes.dlsym
@@ -35,6 +34,10 @@ multiprocessing.popen_spawn_win32
 fcntl.I_[A-Z0-9_]+
 os.SCHED_[A-Z_]+
 posix.SCHED_[A-Z_]+
+((os|posix).CLONE_[A-Z]+)?  # Python 3.12+
+(posix.O_[A-Z_]+)?
+(posix.ST_[A-Z]+)?
+(termios.[A-Z0-9_]+)?
 
 # Some of these exist on non-windows, but they are useless and this is not intended
 stat.FILE_ATTRIBUTE_[A-Z_]+
diff --git a/stdlib/os/__init__.pyi b/stdlib/os/__init__.pyi
index 31c5d2aa3..9045aa105 100644
--- a/stdlib/os/__init__.pyi
+++ b/stdlib/os/__init__.pyi
@@ -1141,16 +1141,16 @@ if sys.version_info >= (3, 10) and sys.platform == "linux":
 if sys.version_info >= (3, 12) and sys.platform == "linux":
     CLONE_FILES: int
     CLONE_FS: int
-    CLONE_NEWCGROUP: int
-    CLONE_NEWIPC: int
-    CLONE_NEWNET: int
+    CLONE_NEWCGROUP: int  # Linux 4.6+
+    CLONE_NEWIPC: int  # Linux 2.6.19+
+    CLONE_NEWNET: int  # Linux 2.6.24+
     CLONE_NEWNS: int
-    CLONE_NEWPID: int
-    CLONE_NEWTIME: int
-    CLONE_NEWUSER: int
-    CLONE_NEWUTS: int
+    CLONE_NEWPID: int  # Linux 3.8+
+    CLONE_NEWTIME: int  # Linux 5.6+
+    CLONE_NEWUSER: int  # Linux 3.8+
+    CLONE_NEWUTS: int  # Linux 2.6.19+
     CLONE_SIGHAND: int
-    CLONE_SYSVSEM: int
+    CLONE_SYSVSEM: int  # Linux 2.6.26+
     CLONE_THREAD: int
     CLONE_VM: int
     def unshare(flags: int) -> None: ...