Synchronise 2026.1 with upstream - #225
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User-supplied scheduler hints can include internal keys like "_nova_check_type" which cause the scheduler to bypass Placement candidate selection, request pre-filters, and resource claims. This can lead to instances being created without proper resource accounting. Rather than rejecting the request, silently strip any _nova-prefixed hints before they reach the scheduler. This is consistent with the existing hints behavior of ignoring unknown ones and ensures the probe attempt still costs the attacker money. Assisted-By: Cursor Change-Id: Iac4fef93bef0bab3060d40a9ea3e0ebd69a38c37 Closes-Bug: #2151252 Signed-off-by: Sylvain Bauza <sbauza@redhat.com> (cherry picked from commit 9666894)
During nova-compute startup, _validate_vtpm_configuration() accesses instance.flavor and instance.image_meta for each instance. These attributes were not pre-loaded, causing 2*N sequential database queries (lazy-loading) and significantly slowing startup time. Add 'flavor' and 'system_metadata' to expected_attrs when loading instances in init_host() to batch-load them in a single query. Assisted-By: claude-4.5-opus-high Closes-Bug: 2141981 Change-Id: I84dc616ebd496b0049b8d828fb3ca80814e86d1d Signed-off-by: Ilia Baikov <ilia.baikov@ib.systems> (cherry picked from commit 2714c71)
The websocket proxy mutates the CONF host list with the Host header from the request, which would then poison future requests and/or lead to a slow resource exhaustion attack. Simply making a copy before mutation avoids the issue. Conflicts: nova/console/websocketproxy.py Generated-By: Claude Opus 4.6 Closes-Bug: #2158919 Change-Id: Ib13e479337f9b1c8b16952089d1d5f6979976b86 Signed-off-by: Dan Smith <dansmith@redhat.com> (cherry picked from commit 0612fed)
Currently the CPU time and address space process limits for qemu-img
are hard-coded to 30 seconds and 1G respectively.
With more recent versions of Ceph in upstream CI, we have experienced
test failures that suggest 1G is no longer large enough for encrypted
RBD images. In the failures the following error is raised:
nova.exception.InvalidDiskInfo: Disk info file is invalid: qemu-img
failed to execute on
rbd:volumes/volume-c83c9b7f-0f38-4bb8-a40a-300a66080d21:id=cinder :
Unexpected error while running command.
Command: /opt/stack/data/venv/bin/python3.12 -m
oslo_concurrency.prlimit --as=1073741824 --cpu=30 -- env LC_ALL=C
LANG=C qemu-img info
rbd:volumes/volume-c83c9b7f-0f38-4bb8-a40a-300a66080d21:id=cinder
--force-share --output=json
Exit code: -6
Stdout: ''
Stderr: 'failed to allocate memory for stack: Cannot allocate memory\n'
This adds config options ``images_cpu_time_limit`` and
``images_address_space_limit`` to the ``[libvirt]`` section to allow
for tuning of the qemu-img process limits, similar to how Cinder and
Ironic make qemu-img process limits configurable.
Stable Only Changes
- the defautl value is updated to 1G to maintain stable
branch behavior
- the ci jobs are updated to use 2G to match master
- the release note is updated to reflect this.
Closes-Bug: #2116852
Change-Id: I10e53de27b063b1e514e04066d0eb56a86188e9a
Signed-off-by: melanie witt <melwittt@gmail.com>
Signed-off-by: Sean Mooney <work@seanmooney.info>
(cherry picked from commit 7f43431)
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This PR contains a snapshot of 2026.1 from upstream stable/2026.1.