[Bug 1978865] Re: openvswitch: nf_ct_put is called with null pointer
🤖 prod-kernel-team-janitor
1978865 at bugs.launchpad.net
Mon Apr 13 13:57:08 UTC 2026
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** Tags added: kernel-autoclosed kernel-autoclosed-expired
** Changed in: linux (Ubuntu)
Status: Confirmed => Expired
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https://bugs.launchpad.net/bugs/1978865
Title:
openvswitch: nf_ct_put is called with null pointer
Status in linux package in Ubuntu:
Expired
Status in openvswitch package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Fix Committed
Bug description:
Using an openvswitch bridge with conntrack flows causes a kernel
warning trace for every packet. This does not break conntrack
functionality, but causes a big packet forwarding performance
degradation and very noisy and large kernel.log/journal/syslog/etc.
The cause is a regression in the 5.15 LTS kernel. This seems to have
been fixed in mainline 5.15.36, but I don't see the fix in any of the
jammy branches.
Upgrading to mainline 5.15.36 or beyond from the Ubuntu PPA fixes the
problem.
Here is a relevant discussion with reference to the fix applied to mainline:
https://lore.kernel.org/netdev/YmaJlOS1YtPaq0EC@kroah.com/T/
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-39-generic 5.15.0-39.42
ProcVersionSignature: Ubuntu 5.15.0-39.42-generic 5.15.35
Uname: Linux 5.15.0-39-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl icp
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jun 15 15:38 seq
crw-rw---- 1 root audio 116, 33 Jun 15 15:38 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
CasperMD5CheckMismatches: ./boot/grub/grub.cfg
CasperMD5CheckResult: fail
Date: Wed Jun 15 15:41:13 2022
InstallationDate: Installed on 2022-06-15 (0 days ago)
InstallationMedia: Ubuntu-Server 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220421)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Supermicro SYS-E300-8D
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-39-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro
RelatedPackageVersions:
linux-restricted-modules-5.15.0-39-generic N/A
linux-backports-modules-5.15.0-39-generic N/A
linux-firmware 20220329.git681281e4-0ubuntu3.2
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/31/2017
dmi.bios.release: 5.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.0c
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X10SDV-TP8F
dmi.board.vendor: Supermicro
dmi.board.version: 1.01
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 1
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.0c:bd10/31/2017:br5.6:svnSupermicro:pnSYS-E300-8D:pvr0123456789:rvnSupermicro:rnX10SDV-TP8F:rvr1.01:cvnSupermicro:ct1:cvr0123456789:skuTobefilledbyO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: SYS-E300-8D
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
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