Bug 219149 - netfilter: Add some flag combinations to ip contrack to detect valid tcp flag sets
Summary: netfilter: Add some flag combinations to ip contrack to detect valid tcp flag...
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel   
(Show other bugs)
Version: 4.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Neil Horman
QA Contact: Brian Brock
: 215718 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2006-12-11 15:37 UTC by Linda Wang
Modified: 2018-10-19 20:33 UTC (History)
3 users (show)

Fixed In Version: RHBA-2007-0304
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2007-05-08 04:27:00 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2007:0304 normal SHIPPED_LIVE Updated kernel packages available for Red Hat Enterprise Linux 4 Update 5 2007-04-28 18:58:50 UTC

Description Linda Wang 2006-12-11 15:37:21 UTC
Description of problem:

Backport of the following two upstream commits:

Adds SYN+PUSH, and SYN+ACK+PUSH to the list of tcp flag sets that ip contrack
recognizes as valid.  Please ACK

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
Actual results:

Expected results:

Additional info:
Thanks to Jeff Layton for the leg work and testing on this.

--- linux-2.6.9/net/ipv4/netfilter/ip_conntrack_proto_tcp.c.push
+++ linux-2.6.9/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
@@ -754,6 +754,8 @@ static u8 tcp_valid_flags[(TH_FIN|TH_SYN
 	[TH_SYN]			= 1,
 	[TH_SYN|TH_ACK]			= 1,
+	[TH_SYN|TH_PUSH]		= 1,
 	[TH_RST]			= 1,
 	[TH_RST|TH_ACK]			= 1,

Comment 1 Neil Horman 2006-12-11 15:52:26 UTC
*** Bug 215718 has been marked as a duplicate of this bug. ***

Comment 2 RHEL Product and Program Management 2006-12-11 16:10:22 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update

Comment 3 Jason Baron 2006-12-13 19:31:32 UTC
committed in stream U5 build 42.31. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 4 Jay Turner 2006-12-18 15:03:38 UTC
QE ack for RHEL4.5.

Comment 7 Red Hat Bugzilla 2007-05-08 04:27:01 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


Note You need to log in before you can comment on or make changes to this bug.