** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Kinetic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => In Progress
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux (Ubuntu Jammy)
Status: New => In Progress
** Changed in: linux (Ubuntu Kinetic)
Status: New => In Progress
** Changed in: linux (Ubuntu Kinetic)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Jammy)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Thadeu Lima de Souza Cascardo (cascardo)
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => High
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => High
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => High
** Changed in: linux (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: linux (Ubuntu Kinetic)
Importance: Undecided => High
** Description changed:
+ [Impact]
+ Xen guests will not have network access. This fixes a regression due to the
fix
+ for CVE-2022-3643.
+
+ [Testing]
+ This has only been build-tested.
+
+ [Potential regression]
+ Xen guests might not have network access.
+ ----------------------------------------------------------------------
+
+
With 5.15.0-58.64-generic, bridge networking on xen is broken :
- no packet (check with tcpdump) flowing between dom0 and any domUs attached
to a network bridge.
- downgrading to 5.15.0-57-generic fix the issue. Thus the patch to the
netback driver seems the cause.
+ no packet (check with tcpdump) flowing between dom0 and any domUs
+ attached to a network bridge.
+ downgrading to 5.15.0-57-generic fix the issue. Thus the patch to the
netback driver seems the cause.
relevant network config :
brtctl show :
br0 8000.XXXXXXXXXXX no eno1
- vif1.0
+ vif1.0
relevant domU config :
kernel = '/usr/lib/grub-xen/grub-i386-xen_pvh.bin'
type = 'pvh'
vif = [ 'ip=192.168.10.10 ,bridge=br0' ]
No message in dmesg, journal, xen logs..
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2002889
Title:
5.15.0-58.64 breaks xen bridge networking (pvh domU)
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Xenial:
In Progress
Status in linux source package in Bionic:
In Progress
Status in linux source package in Focal:
In Progress
Status in linux source package in Jammy:
In Progress
Status in linux source package in Kinetic:
In Progress
Bug description:
[Impact]
Xen guests will not have network access. This fixes a regression due to the
fix
for CVE-2022-3643.
[Testing]
This has only been build-tested.
[Potential regression]
Xen guests might not have network access.
----------------------------------------------------------------------
With 5.15.0-58.64-generic, bridge networking on xen is broken :
no packet (check with tcpdump) flowing between dom0 and any domUs
attached to a network bridge.
downgrading to 5.15.0-57-generic fix the issue. Thus the patch to the
netback driver seems the cause.
relevant network config :
brtctl show :
br0 8000.XXXXXXXXXXX no eno1
vif1.0
relevant domU config :
kernel = '/usr/lib/grub-xen/grub-i386-xen_pvh.bin'
type = 'pvh'
vif = [ 'ip=192.168.10.10 ,bridge=br0' ]
No message in dmesg, journal, xen logs..
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2002889/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
