It works in 5.15.0-56-generic. It looks like you included https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/net/xen-netback?h=linux-5.15.y&id=0fe29bd92594a747a2561589bd452c259451929e to fix CVE-2022-3643.
Unfortunately, that commit had issues and needed a fixup: https://lore.kernel.org/xen-devel/681773dd-6264-63ac-a3b5-a9182b9e0...@suse.com/T/#t The 5.15.y version of that patch is in stable here: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/net/xen-netback?h=linux-5.15.y&id=dec5abd91abc700dcb869f8056bc1f48d045ff97 Looking at http://launchpadlibrarian.net/644373416/linux_5.15.0-56.62_5.15.0-58.64.diff.gz , it looks like dec5abd91abc700dcb869f8056bc1f48d045ff97 is missing. -- 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: Incomplete Bug description: 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
