Apparmor image unpacker profile name mismatch with storage.images_volume set

[lukts30]

Required information

• Distribution: Arch Linux

  config:
  images.auto_update_interval: "0"
  storage.backups_volume: zpool/backups
  storage.images_volume: zpool/images
  api_extensions:
  - storage_zfs_remove_snapshots
  - container_host_shutdown_timeout
  - container_stop_priority
  - container_syscall_filtering
  - auth_pki
  - container_last_used_at
  - etag
  - patch
  - usb_devices
  - https_allowed_credentials
  - image_compression_algorithm
  - directory_manipulation
  - container_cpu_time
  - storage_zfs_use_refquota
  - storage_lvm_mount_options
  - network
  - profile_usedby
  - container_push
  - container_exec_recording
  - certificate_update
  - container_exec_signal_handling
  - gpu_devices
  - container_image_properties
  - migration_progress
  - id_map
  - network_firewall_filtering
  - network_routes
  - storage
  - file_delete
  - file_append
  - network_dhcp_expiry
  - storage_lvm_vg_rename
  - storage_lvm_thinpool_rename
  - network_vlan
  - image_create_aliases
  - container_stateless_copy
  - container_only_migration
  - storage_zfs_clone_copy
  - unix_device_rename
  - storage_lvm_use_thinpool
  - storage_rsync_bwlimit
  - network_vxlan_interface
  - storage_btrfs_mount_options
  - entity_description
  - image_force_refresh
  - storage_lvm_lv_resizing
  - id_map_base
  - file_symlinks
  - container_push_target
  - network_vlan_physical
  - storage_images_delete
  - container_edit_metadata
  - container_snapshot_stateful_migration
  - storage_driver_ceph
  - storage_ceph_user_name
  - resource_limits
  - storage_volatile_initial_source
  - storage_ceph_force_osd_reuse
  - storage_block_filesystem_btrfs
  - resources
  - kernel_limits
  - storage_api_volume_rename
  - macaroon_authentication
  - network_sriov
  - console
  - restrict_devlxd
  - migration_pre_copy
  - infiniband
  - maas_network
  - devlxd_events
  - proxy
  - network_dhcp_gateway
  - file_get_symlink
  - network_leases
  - unix_device_hotplug
  - storage_api_local_volume_handling
  - operation_description
  - clustering
  - event_lifecycle
  - storage_api_remote_volume_handling
  - nvidia_runtime
  - container_mount_propagation
  - container_backup
  - devlxd_images
  - container_local_cross_pool_handling
  - proxy_unix
  - proxy_udp
  - clustering_join
  - proxy_tcp_udp_multi_port_handling
  - network_state
  - proxy_unix_dac_properties
  - container_protection_delete
  - unix_priv_drop
  - pprof_http
  - proxy_haproxy_protocol
  - network_hwaddr
  - proxy_nat
  - network_nat_order
  - container_full
  - candid_authentication
  - backup_compression
  - candid_config
  - nvidia_runtime_config
  - storage_api_volume_snapshots
  - storage_unmapped
  - projects
  - candid_config_key
  - network_vxlan_ttl
  - container_incremental_copy
  - usb_optional_vendorid
  - snapshot_scheduling
  - snapshot_schedule_aliases
  - container_copy_project
  - clustering_server_address
  - clustering_image_replication
  - container_protection_shift
  - snapshot_expiry
  - container_backup_override_pool
  - snapshot_expiry_creation
  - network_leases_location
  - resources_cpu_socket
  - resources_gpu
  - resources_numa
  - kernel_features
  - id_map_current
  - event_location
  - storage_api_remote_volume_snapshots
  - network_nat_address
  - container_nic_routes
  - rbac
  - cluster_internal_copy
  - seccomp_notify
  - lxc_features
  - container_nic_ipvlan
  - network_vlan_sriov
  - storage_cephfs
  - container_nic_ipfilter
  - resources_v2
  - container_exec_user_group_cwd
  - container_syscall_intercept
  - container_disk_shift
  - storage_shifted
  - resources_infiniband
  - daemon_storage
  - instances
  - image_types
  - resources_disk_sata
  - clustering_roles
  - images_expiry
  - resources_network_firmware
  - backup_compression_algorithm
  - ceph_data_pool_name
  - container_syscall_intercept_mount
  - compression_squashfs
  - container_raw_mount
  - container_nic_routed
  - container_syscall_intercept_mount_fuse
  - container_disk_ceph
  - virtual-machines
  - image_profiles
  - clustering_architecture
  - resources_disk_id
  - storage_lvm_stripes
  - vm_boot_priority
  - unix_hotplug_devices
  - api_filtering
  - instance_nic_network
  - clustering_sizing
  - firewall_driver
  - projects_limits
  - container_syscall_intercept_hugetlbfs
  - limits_hugepages
  - container_nic_routed_gateway
  - projects_restrictions
  - custom_volume_snapshot_expiry
  - volume_snapshot_scheduling
  - trust_ca_certificates
  - snapshot_disk_usage
  - clustering_edit_roles
  - container_nic_routed_host_address
  - container_nic_ipvlan_gateway
  - resources_usb_pci
  - resources_cpu_threads_numa
  - resources_cpu_core_die
  - api_os
  - container_nic_routed_host_table
  - container_nic_ipvlan_host_table
  - container_nic_ipvlan_mode
  - resources_system
  - images_push_relay
  - network_dns_search
  - container_nic_routed_limits
  - instance_nic_bridged_vlan
  - network_state_bond_bridge
  - usedby_consistency
  - custom_block_volumes
  - clustering_failure_domains
  - resources_gpu_mdev
  - console_vga_type
  - projects_limits_disk
  - network_type_macvlan
  - network_type_sriov
  - container_syscall_intercept_bpf_devices
  - network_type_ovn
  - projects_networks
  - projects_networks_restricted_uplinks
  - custom_volume_backup
  - backup_override_name
  - storage_rsync_compression
  - network_type_physical
  - network_ovn_external_subnets
  - network_ovn_nat
  - network_ovn_external_routes_remove
  - tpm_device_type
  - storage_zfs_clone_copy_rebase
  - gpu_mdev
  - resources_pci_iommu
  - resources_network_usb
  - resources_disk_address
  - network_physical_ovn_ingress_mode
  - network_ovn_dhcp
  - network_physical_routes_anycast
  - projects_limits_instances
  - network_state_vlan
  - instance_nic_bridged_port_isolation
  - instance_bulk_state_change
  - network_gvrp
  - instance_pool_move
  - gpu_sriov
  - pci_device_type
  - storage_volume_state
  - network_acl
  - migration_stateful
  - disk_state_quota
  - storage_ceph_features
  - projects_compression
  - projects_images_remote_cache_expiry
  - certificate_project
  - network_ovn_acl
  - projects_images_auto_update
  - projects_restricted_cluster_target
  - images_default_architecture
  - network_ovn_acl_defaults
  - gpu_mig
  - project_usage
  - network_bridge_acl
  - warnings
  - projects_restricted_backups_and_snapshots
  - clustering_join_token
  - clustering_description
  - server_trusted_proxy
  - clustering_update_cert
  - storage_api_project
  - server_instance_driver_operational
  - server_supported_storage_drivers
  - event_lifecycle_requestor_address
  - resources_gpu_usb
  - clustering_evacuation
  - network_ovn_nat_address
  - network_bgp
  - network_forward
  - custom_volume_refresh
  - network_counters_errors_dropped
  - metrics
  - image_source_project
  - clustering_config
  - network_peer
  - linux_sysctl
  - network_dns
  - ovn_nic_acceleration
  - certificate_self_renewal
  - instance_project_move
  - storage_volume_project_move
  - cloud_init
  - network_dns_nat
  - database_leader
  - instance_all_projects
  - clustering_groups
  - ceph_rbd_du
  - instance_get_full
  - qemu_metrics
  - gpu_mig_uuid
  - event_project
  - clustering_evacuation_live
  - instance_allow_inconsistent_copy
  - network_state_ovn
  - storage_volume_api_filtering
  - image_restrictions
  - storage_zfs_export
  - network_dns_records
  - storage_zfs_reserve_space
  - network_acl_log
  - storage_zfs_blocksize
  - metrics_cpu_seconds
  - instance_snapshot_never
  - certificate_token
  - instance_nic_routed_neighbor_probe
  - event_hub
  - agent_nic_config
  - projects_restricted_intercept
  - metrics_authentication
  - images_target_project
  - cluster_migration_inconsistent_copy
  - cluster_ovn_chassis
  - container_syscall_intercept_sched_setscheduler
  - storage_lvm_thinpool_metadata_size
  - storage_volume_state_total
  - instance_file_head
  - instances_nic_host_name
  - image_copy_profile
  - container_syscall_intercept_sysinfo
  - clustering_evacuation_mode
  - resources_pci_vpd
  - qemu_raw_conf
  - storage_cephfs_fscache
  - network_load_balancer
  - vsock_api
  api_status: stable
  api_version: "1.0"
  auth: trusted
  public: false
  auth_methods:
  - tls
  environment:
  addresses: []
  architectures:
  - x86_64
  - i686
  certificate: |
  -----BEGIN CERTIFICATE-----
  -----END CERTIFICATE-----
  certificate_fingerprint: 
  driver: qemu | lxc
  driver_version: 7.0.0 | 5.0.1
  firewall: nftables
  kernel: Linux
  kernel_architecture: x86_64
  kernel_features:
  idmapped_mounts: "true"
  netnsid_getifaddrs: "true"
  seccomp_listener: "true"
  seccomp_listener_continue: "true"
  shiftfs: "false"
  uevent_injection: "true"
  unpriv_fscaps: "true"
  kernel_version: 5.18.15-arch1-2
  lxc_features:
  cgroup2: "true"
  core_scheduling: "true"
  devpts_fd: "true"
  idmapped_mounts_v2: "true"
  mount_injection_file: "true"
  network_gateway_device_route: "true"
  network_ipvlan: "true"
  network_l2proxy: "true"
  network_phys_macvlan_mtu: "true"
  network_veth_router: "true"
  pidfd: "true"
  seccomp_allow_deny_syntax: "true"
  seccomp_notify: "true"
  seccomp_proxy_send_notify_fd: "true"
  os_name: Arch Linux
  os_version: ""
  project: default
  server: lxd
  server_clustered: false
  server_event_mode: full-mesh
  server_name: Server1
  server_pid: 9981
  server_version: "5.4"
  storage: zfs | btrfs
  storage_version: 2.1.4-1 | 5.18.1
  storage_supported_drivers:
  - name: lvm
  version: 2.03.16(2) (2022-05-18) / 1.02.185 (2022-05-18) / 4.46.0
  remote: false
  - name: zfs
  version: 2.1.4-1
  remote: false
  - name: btrfs
  version: 5.18.1
  remote: false
  - name: dir
  version: "1"
  remote: false

Issue description

1. If storage.images_volume is set then /var/lib/lxd/images becomes a symlink.
2. For archive unpacking LXD generates an apparmor profile with the name being based on the realpath (e.g. lxd_archive-var-lib-lxd-storage-pools-zpool-custom-default_images-lxd_image_unpack_2344082808
3. But when assigning the profile lxd assumes a static name based on /var/lib/lxd/images. : lxd_archive-var-lib-lxd-images-lxd_image_unpack_2344082808.

Information to attach

lxd_ctr_name=w11
lukas@PC  $ lxc init local:Win11 $lxd_ctr_name -p default -p extbridge -c limits.cpu=4 -c limits.memory=8GB --vm -s zpool 
Creating w11 
Error: Failed creating instance from image: Unpack failed: Failed to run: tar --restrict --force-local -C /var/lib/lxd/images/lxd_image_unpack_2344082808 --numeric-owner --xattrs-include=* -xf -: [493107] aa-exec: ERROR: profile 'lxd_archive-var-lib-lxd-images-lxd_image_unpack_2344082808' does not exist 
lukas@PC  $ sudo aa-status 
apparmor module is loaded. 
4 profiles are loaded. 
4 profiles are in enforce mode. 
  lxd_archive-var-lib-lxd-storage-pools-zpool-custom-default_images-lxd_image_unpack_2344082808 
  lxd_archive-var-lib-lxd-storage-pools-zpool-custom-default_images-lxd_image_unpack_278929189 
  lxd_archive-var-lib-lxd-storage-pools-zpool-custom-default_images-lxd_image_unpack_953680819 
  lxd_dnsmasq-lxdbr0_</var/lib/lxd> 
0 profiles are in complain mode. 
0 profiles are in kill mode. 
0 profiles are in unconfined mode. 
1 processes have profiles defined. 
1 processes are in enforce mode. 
  /usr/bin/dnsmasq (10183) lxd_dnsmasq-lxdbr0_</var/lib/lxd> 
0 processes are in complain mode. 
0 processes are unconfined but have a profile defined. 
0 processes are in mixed mode. 
0 processes are in kill mode.

[ 7231.597343] audit: type=1400 audit(1660127504.527:790): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lxd_archive-var-lib-lxd-storage-pools-zpool-custom-default_images-lxd_image_unpack_2344082808" pid=493106 comm="apparmor_parser" 
[ 7231.597348] audit: type=1300 audit(1660127504.527:790): arch=c000003e syscall=1 success=yes exit=37873 a0=6 a1=563758d6e750 a2=93f1 a3=0 items=0 ppid=493105 pid=493106 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="apparmor_parser" exe="/usr/bin/apparmor_p
arser" subj==unconfined key=(null) 
[ 7231.597350] audit: type=1327 audit(1660127504.527:790): proctitle=61707061726D6F725F706172736572002D72574C002F7661722F6C69622F6C78642F73656375726974792F61707061726D6F722F6361636865002F7661722F6C69622F6C78642F73656375726974792F61707061726D6F722F70726F66696C65732F6C78645F617263686976652D7661722D6C69622D6C78642D696
D61676573 
[ 7231.598274] audit: type=1400 audit(1660127504.530:791): apparmor="DENIED" operation="change_onexec" info="label not found" error=-2 profile="unconfined" name="lxd_archive-var-lib-lxd-images-lxd_image_unpack_2344082808" pid=493107 comm="aa-exec"

[simondeziel]

Ah, that's what I was hitting in #10816 cause I do have that config key set:

$ lxc config show
config:
  storage.backups_volume: default/backups
  storage.images_volume: default/images

[simondeziel]

storage.backups_volume seems to be the key that triggers #10816. As such both keys will need special handling.

[tomponline]

Thanks for confirming