*** This bug is a duplicate of bug 2111912 ***
https://bugs.launchpad.net/bugs/2111912
** This bug has been marked a duplicate of bug 2111912
CVE-2025-46836 fix breaks interface counters for ifconfig
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https://bugs.launchpad.net/bugs/2111870
Title:
ifconfig can no logner collect stats for RX/TX packets by Linux
kernel 6.6 or later
Status in net-tools package in Ubuntu:
Confirmed
Bug description:
I have a WSL2 on Windows 11 and it's Linux kernel:
6.6.87.1-microsoft-standard-WSL2
It installed Ubuntu :
Distributor ID: Ubuntu
Description: Ubuntu 24.04.2 LTS
Release: 24.04
Codename: noble
Then recently net-tools was upgraded
ii net-tools 2.10-0.1ubuntu4.1
amd64 NET-3 networking toolkit
For now, all RX/TX packets are zeros by ifconfig
eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.x.x.x netmask 255.255.240.0 broadcast 10.x.x.x
ether x:x:x:x:x:x txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
loopback0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 00:15:5d:55:31:ab txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
However, although there are two different interfaces, but ip link can
see the stats of RX/TX
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode
DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
RX: bytes packets errors dropped missed mcast
0 0 0 0 0 0
TX: bytes packets errors dropped carrier collsns
0 0 0 0 0 0
3: loopback0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP
mode DEFAULT group default qlen 1000
link/ether 00:15:5d:55:31:ab brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped missed mcast
12733175 173235 0 2 0 11
TX: bytes packets errors dropped carrier collsns
19174566 103780 0 0 0 0
7: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode
DEFAULT group default qlen 1000
link/ether x:x:x:x:x:x brd ff:ff:ff:ff:ff:ff
RX: bytes packets errors dropped missed mcast
9945564262 3718021 0 0 0 0
TX: bytes packets errors dropped carrier collsns
28241290 246937 0 0 0 0
Does that mean ifconfig is obsoleted and out-of-date?
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: net-tools 2.10-0.1ubuntu4.1
Uname: Linux 6.6.87.1-microsoft-standard-WSL2 x86_64
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: amd64
CasperMD5CheckResult: unknown
CloudBuildName: server
CloudSerial: 20230530
Date: Wed May 28 09:55:24 2025
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
SourcePackage: net-tools
UpgradeStatus: Upgraded to noble on 2024-10-17 (223 days ago)
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