python · sobolevn · Apr 18, 2025 · Feb 6, 2025 · Feb 6, 2025 · Feb 6, 2025
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
@@ -473,6 +473,9 @@ Constants
    .. versionchanged:: 3.11
       NetBSD support was added.
 
+   .. versionchanged:: 3.14
+      Restored missing ``CAN_RAW_ERR_FILTER`` on Linux.
+
 .. data:: CAN_BCM
           CAN_BCM_*
 

diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst
@@ -655,6 +655,12 @@ sys
 * On FreeBSD, :data:`sys.platform` doesn't contain the major version anymore.
   It is always ``'freebsd'``, instead of ``'freebsd13'`` or ``'freebsd14'``.
 
+socket
+------
+
+* Fix missing CAN_RAW_ERR_FILTER constant in the :mod:`socket` module on Linux systems.
+  It was missing since Python 3.11.
+  (Contributed by Jeroen Bogers in :gh:`129719`.)
 
 sys.monitoring
 --------------

diff --git a/Misc/NEWS.d/next/Library/2025-02-06-11-23-51.gh-issue-129719.Of6rvb.rst b/Misc/NEWS.d/next/Library/2025-02-06-11-23-51.gh-issue-129719.Of6rvb.rst
@@ -0,0 +1 @@
+Fix missing CAN_RAW_ERR_FILTER constant in the socket module on Linux systems. It was missing since Python 3.11.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
@@ -8223,7 +8223,7 @@ socket_exec(PyObject *m)
 #endif
 #if defined(HAVE_LINUX_CAN_RAW_H) || defined(HAVE_NETCAN_CAN_H)
     ADD_INT_MACRO(m, CAN_RAW_FILTER);
-#ifdef CAN_RAW_ERR_FILTER
+#ifdef HAVE_LINUX_CAN_RAW_H
     ADD_INT_MACRO(m, CAN_RAW_ERR_FILTER);
 #endif
     ADD_INT_MACRO(m, CAN_RAW_LOOPBACK);
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Fix missing CAN_RAW_ERR_FILTER constant in the socket module on Linux systems. It was missing since Python 3.11.
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