From: Stephen Hemminger <stephen@networkplumber.org>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netdev@vger.kernel.org
Subject: Fw: [Bug 94501] New: Kernel crash while deleting a nftables "table"
Date: Sun, 8 Mar 2015 09:30:40 -0700 [thread overview]
Message-ID: <20150308093040.0c3f7c41@urahara> (raw)
Begin forwarded message:
Date: Sun, 8 Mar 2015 12:45:39 +0000
From: "bugzilla-daemon@bugzilla.kernel.org" <bugzilla-daemon@bugzilla.kernel.org>
To: "shemminger@linux-foundation.org" <shemminger@linux-foundation.org>
Subject: [Bug 94501] New: Kernel crash while deleting a nftables "table"
https://bugzilla.kernel.org/show_bug.cgi?id=94501
Bug ID: 94501
Summary: Kernel crash while deleting a nftables "table"
Product: Networking
Version: 2.5
Kernel Version: 4.0.0-rc2
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Other
Assignee: shemminger@linux-foundation.org
Reporter: jp.pozzi@izzop.net
Regression: No
Created attachment 169681
--> https://bugzilla.kernel.org/attachment.cgi?id=169681&action=edit
Table after execution script
Hello,
I am testing "nftables" and get a kernel crash while deleting a table.
The first problem arose when I try to "flush" a table before executing a script
file :
ENTREE.dat:5:1-2: Error: Could not process rule: File exists
table ip NIV_UN {
^^
ENTREE.dat:5:1-2: Error: Could not process rule: File exists
table ip NIV_UN {
^^
The script begins with :
flush table NIV_UN;
table ip NIV_UN {
set PORT_TCP_IN {
type inet_service
include "xxxxx.set"
}
............
If I "manually" flush the table with "nft flush table NIV_UN" all is good and
the content of the table is flushed, but remains in a state where no modify is
possible.
The command "nft flush table NIV_UN" works and the result seems OK (cf FILE 1),
but if I try to re-execute the script I get the same error.
If I try to delete the table with "nft delete table NIV_UN" I get a kernel
crash which is not visible in the logs, the only way I found is to take a photo
of the screen ...
Files attached : NFTLIST.txt : right after execution
NFTLIST_FLUSH.txt : after execution a "flush"
screen_img.jpg
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