feat(abs): glibc: restrict auxv maps and statux to owner.

apparmor.d/abstractions/glibc

@@ -22,9 +22,15 @@
   @{PROC}/stat r,
 
   # Glibc's *printf protections read the maps file
-  @{PROC}/@{pid}/auxv r,
+  owner @{PROC}/@{pid}/auxv r,
-  @{PROC}/@{pid}/maps r,
+  owner @{PROC}/@{pid}/maps r,
-  @{PROC}/@{pid}/status r,
+  owner @{PROC}/@{pid}/status r,
+
+  # @{PROC}/@{pid}/map_files/ contains the same info than @{PROC}/@{pid}/maps,
+  # but in a format that is simpler to manage, because it doesn't require to
+  # parse the text data inside a file, but just reading the contents of
+  # a directory.
+  owner @{PROC}/@{pid}/map_files/ r,
 
   # Glibc statvfs
   @{PROC}/filesystems r,

apparmor.d/groups/apt/apt-overlay

@@ -30,7 +30,6 @@ profile apt-overlay @{exec_path} {
   /root/ r,
 
   owner @{PROC}/@{pids}/loginuid r,
-  owner @{PROC}/@{pids}/maps r,
 
   include if exists <local/apt-overlay>
 }

apparmor.d/groups/polkit/polkitd

@@ -65,8 +65,9 @@ profile polkitd @{exec_path} flags=(attach_disconnected) {
 
   @{PROC}/@{pids}/cgroup r,
   @{PROC}/@{pids}/cmdline r,
-  @{PROC}/@{pid}/fdinfo/@{int} r,
+  @{PROC}/@{pids}/fdinfo/@{int} r,
   @{PROC}/@{pids}/stat r,
+  @{PROC}/@{pids}/status r,
   @{PROC}/@{pids}/task/@{tid}/stat r,
   @{PROC}/1/environ r,
   @{PROC}/cmdline r,

apparmor.d/groups/procps/ps

@@ -34,6 +34,7 @@ profile ps @{exec_path} flags=(attach_disconnected) {
   @{PROC}/@{pids}/loginuid r,
   @{PROC}/@{pids}/stat r,
   @{PROC}/@{pids}/statm r,
+  @{PROC}/@{pids}/status r,
   @{PROC}/@{pids}/task/ r,
   @{PROC}/@{pids}/task/@{tid}/cmdline r,
   @{PROC}/@{pids}/task/@{tid}/stat r,

apparmor.d/groups/systemd/systemd-journald

@@ -82,6 +82,7 @@ profile systemd-journald @{exec_path} flags=(attach_disconnected,mediate_deleted
   @{PROC}/@{pids}/comm r,
   @{PROC}/@{pids}/loginuid r,
   @{PROC}/@{pids}/sessionid r,
+  @{PROC}/@{pids}/status r,
   @{PROC}/pressure/* r,
   @{PROC}/sys/kernel/hostname r,
 

apparmor.d/groups/virt/libvirtd

@@ -284,7 +284,7 @@ profile libvirtd @{exec_path} flags=(attach_disconnected) {
 
     /etc/qemu/{,**} r,
 
-    owner @{PROC}/@{pids}/status r,
+    @{PROC}/@{pids}/status r,
 
     /dev/net/tun rw,
 

apparmor.d/profiles-m-r/mdevctl

@@ -19,8 +19,6 @@ profile mdevctl @{exec_path} {
   @{sys}/class/mdev_bus/ r,
   @{sys}/devices/@{pci}/mdev_supported_types/{,**} r,
 
-  @{PROC}/@{pids}/maps r,
-
   include if exists <local/mdevctl>
 }
 

apparmor.d/profiles-s-z/syncoid

@@ -25,8 +25,6 @@ profile syncoid @{exec_path} flags=(complain) {
 
   /etc/mbuffer.rc r,
 
-  @{PROC}/@{pids}/maps r,
-
   include if exists <local/syncoid>
 }