Comment 2 for bug 2002889

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://<email address hidden>/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.