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8741b94351
Due to kernel upstream change 338d0be4 ("apparmor: fix ptrace read check")
libvirt now hits apparmor denies like:
apparmor="DENIED" operation="ptrace" profile="/usr/sbin/libvirtd"
pid=4409 comm="libvirtd" requested_mask="read" denied_mask="read"
peer="libvirt-14e92a75-7668-4b97-8f92-322fc1b9c78a"
Extend the ptrace rule to also allow 'ptrace (read)' for libvirtd to work
with these newer kernels.
Fixes: https://bugs.launchpad.net/bugs/1788603
Reported-by: Thadeu Lima de Souza Cascardo <thadeu.cascardo@canonical.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Jamie Strandboge <jamie@canonical.com>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
132 lines
4.2 KiB
Plaintext
132 lines
4.2 KiB
Plaintext
# Last Modified: Mon Apr 5 15:03:58 2010
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#include <tunables/global>
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@{LIBVIRT}="libvirt"
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/usr/sbin/libvirtd flags=(attach_disconnected) {
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#include <abstractions/base>
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#include <abstractions/dbus>
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capability kill,
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capability net_admin,
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capability net_raw,
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capability setgid,
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capability sys_admin,
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capability sys_module,
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capability sys_ptrace,
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capability sys_pacct,
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capability sys_nice,
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capability sys_chroot,
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capability setuid,
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capability dac_override,
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capability dac_read_search,
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capability fowner,
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capability chown,
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capability setpcap,
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capability mknod,
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capability fsetid,
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capability audit_write,
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capability ipc_lock,
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# Needed for vfio
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capability sys_resource,
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mount options=(rw,rslave) -> /,
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mount options=(rw, nosuid) -> /{var/,}run/libvirt/qemu/*.dev/,
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# libvirt provides any mounts under /dev to qemu namespaces
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mount options=(rw, move) /dev/ -> /{,var/}run/libvirt/qemu/*.dev/,
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mount options=(rw, move) /dev/** -> /{,var/}run/libvirt/qemu/*{,/},
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mount options=(rw, move) /{,var/}run/libvirt/qemu/*.dev/ -> /dev/,
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mount options=(rw, move) /{,var/}run/libvirt/qemu/*{,/} -> /dev/**,
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network inet stream,
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network inet dgram,
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network inet6 stream,
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network inet6 dgram,
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network netlink raw,
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network packet dgram,
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network packet raw,
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# for --p2p migrations
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unix (send, receive) type=stream addr=none peer=(label=unconfined addr=none),
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ptrace (read,trace) peer=unconfined,
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ptrace (read,trace) peer=/usr/sbin/libvirtd,
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ptrace (read,trace) peer=/usr/sbin/dnsmasq,
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ptrace (read,trace) peer=libvirt-*,
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signal (send) peer=/usr/sbin/dnsmasq,
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signal (read, send) peer=libvirt-*,
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signal (send) set=("kill", "term") peer=unconfined,
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# For communication/control to qemu-bridge-helper
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unix (send, receive) type=stream addr=none peer=(label=/usr/sbin/libvirtd//qemu_bridge_helper),
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signal (send) set=("term") peer=/usr/sbin/libvirtd//qemu_bridge_helper,
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# allow connect with openGraphicsFD, direction reversed in newer versions
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unix (send, receive) type=stream addr=none peer=(label=libvirt-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*),
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# unconfined also required if guests run without security module
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unix (send, receive) type=stream addr=none peer=(label=unconfined),
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# required if guests run unconfined seclabel type='none' but libvirtd is confined
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signal (read, send) peer=unconfined,
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# Very lenient profile for libvirtd since we want to first focus on confining
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# the guests. Guests will have a very restricted profile.
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/ r,
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/** rwmkl,
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/bin/* PUx,
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/sbin/* PUx,
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/usr/bin/* PUx,
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/usr/sbin/virtlogd pix,
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/usr/sbin/* PUx,
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/{usr/,}lib/udev/scsi_id PUx,
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/usr/{lib,lib64}/xen-common/bin/xen-toolstack PUx,
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/usr/{lib,lib64}/xen/bin/* Ux,
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/usr/lib/xen-*/bin/libxl-save-helper PUx,
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# Required by nwfilter_ebiptables_driver.c:ebiptablesWriteToTempFile() to
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# read and run an ebtables script.
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/var/lib/libvirt/virtd* ixr,
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# force the use of virt-aa-helper
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audit deny /{usr/,}sbin/apparmor_parser rwxl,
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audit deny /etc/apparmor.d/libvirt/** wxl,
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audit deny /sys/kernel/security/apparmor/features rwxl,
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audit deny /sys/kernel/security/apparmor/matching rwxl,
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audit deny /sys/kernel/security/apparmor/.* rwxl,
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/sys/kernel/security/apparmor/profiles r,
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/usr/{lib,lib64}/libvirt/* PUxr,
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/usr/{lib,lib64}/libvirt/libvirt_parthelper ix,
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/usr/{lib,lib64}/libvirt/libvirt_iohelper ix,
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/etc/libvirt/hooks/** rmix,
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/etc/xen/scripts/** rmix,
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# allow changing to our UUID-based named profiles
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change_profile -> @{LIBVIRT}-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*,
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/usr/{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper Cx -> qemu_bridge_helper,
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# child profile for bridge helper process
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profile qemu_bridge_helper {
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#include <abstractions/base>
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capability setuid,
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capability setgid,
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capability setpcap,
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capability net_admin,
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network inet stream,
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# For communication/control from libvirtd
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unix (send, receive) type=stream addr=none peer=(label=/usr/sbin/libvirtd),
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signal (receive) set=("term") peer=/usr/sbin/libvirtd,
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/dev/net/tun rw,
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/etc/qemu/** r,
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owner @{PROC}/*/status r,
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/usr/{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper rmix,
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}
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}
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