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[Bug 1413410] [NEW] Unable to match unix bind rule

 

Public bug reported:

On Ubuntu 14.10, I had this in my logs:
Jan 21 16:32:30 localhost kernel: [24900.927939] audit: type=1400 audit(1421879550.441:534): apparmor="DENIED" operation="bind" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" pid=12356 comm="plugin-containe" family="unix" sock_type="dgram" protocol=0 requested_mask="bind" denied_mask="bind" addr="@676F6F676C652D6E61636C2D6F316431323335362D3339310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"

$ aa-decode 676F6F676C652D6E61636C2D6F316431323335362D3339310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Decoded: google-nacl-o1d12356-391

$ aa-decode 676F6F676C652D6E61636C2D6
Decoded: google-nacl-`

So I tried the following:
unix bind type=dgram addr=@google-nacl*,
unix bind type=dgram addr="@google-nacl*",
unix bind type=dgram addr=@676F6F676C652D6E61636C2D6*,
unix bind type=dgram addr="@676F6F676C652D6E61636C2D6*",

but none of them match. The best I could do was:
unix bind type=dgram,

This is likely going to be important for snappy since snappy will have the concept of different coordinating snaps interacting via abstract sockets. What is interesting is that this seems to work ok for some things, eg:
./lightdm:  unix (bind, listen) type=stream addr="@/com/ubuntu/upstart-session/**",
./lightdm:  unix (bind, listen) type=stream addr="@/tmp/dbus-*",
./lightdm:  unix (bind, listen) type=stream addr="@/tmp/.ICE-unix/[0-9]*",
./lightdm:  unix (bind, listen) type=stream addr="@/dbus-vfs-daemon/*",
./lightdm:  unix (bind, listen) type=stream addr="@guest*",

Is this something in how firefox is setting up the socket?

** Affects: apparmor
     Importance: Undecided
         Status: New

** Affects: apparmor (Ubuntu)
     Importance: High
         Status: New


** Tags: aa-kernel aa-parser

** Changed in: apparmor (Ubuntu)
   Importance: Undecided => High

** Tags added: aa-kernel aa-parser

** Also affects: apparmor
   Importance: Undecided
       Status: New

** Description changed:

- I had this in my logs:
+ On Ubuntu 14.10, I had this in my logs:
  Jan 21 16:32:30 localhost kernel: [24900.927939] audit: type=1400 audit(1421879550.441:534): apparmor="DENIED" operation="bind" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" pid=12356 comm="plugin-containe" family="unix" sock_type="dgram" protocol=0 requested_mask="bind" denied_mask="bind" addr="@676F6F676C652D6E61636C2D6F316431323335362D3339310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
- 
  
  $ aa-decode 676F6F676C652D6E61636C2D6F316431323335362D3339310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  Decoded: google-nacl-o1d12356-391
  
- 
  $ aa-decode 676F6F676C652D6E61636C2D6
  Decoded: google-nacl-`
- 
  
  So I tried the following:
  unix bind type=dgram addr=@google-nacl*,
  unix bind type=dgram addr="@google-nacl*",
  unix bind type=dgram addr=@676F6F676C652D6E61636C2D6*,
  unix bind type=dgram addr="@676F6F676C652D6E61636C2D6*",
  
  but none of them match. The best I could do was:
  unix bind type=dgram,
  
- 
  This is likely going to be important for snappy since snappy will have the concept of different coordinating snaps interacting via abstract sockets. What is interesting is that this seems to work ok for some things, eg:
  ./lightdm:  unix (bind, listen) type=stream addr="@/com/ubuntu/upstart-session/**",
  ./lightdm:  unix (bind, listen) type=stream addr="@/tmp/dbus-*",
  ./lightdm:  unix (bind, listen) type=stream addr="@/tmp/.ICE-unix/[0-9]*",
  ./lightdm:  unix (bind, listen) type=stream addr="@/dbus-vfs-daemon/*",
  ./lightdm:  unix (bind, listen) type=stream addr="@guest*",
  
  Is this something in how firefox is setting up the socket?

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https://bugs.launchpad.net/bugs/1413410

Title:
  Unable to match unix bind rule

Status in AppArmor Linux application security framework:
  New
Status in apparmor package in Ubuntu:
  New

Bug description:
  On Ubuntu 14.10, I had this in my logs:
  Jan 21 16:32:30 localhost kernel: [24900.927939] audit: type=1400 audit(1421879550.441:534): apparmor="DENIED" operation="bind" profile="/usr/lib/firefox/firefox{,*[^s][^h]}" pid=12356 comm="plugin-containe" family="unix" sock_type="dgram" protocol=0 requested_mask="bind" denied_mask="bind" addr="@676F6F676C652D6E61636C2D6F316431323335362D3339310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"

  $ aa-decode 676F6F676C652D6E61636C2D6F316431323335362D3339310000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  Decoded: google-nacl-o1d12356-391

  $ aa-decode 676F6F676C652D6E61636C2D6
  Decoded: google-nacl-`

  So I tried the following:
  unix bind type=dgram addr=@google-nacl*,
  unix bind type=dgram addr="@google-nacl*",
  unix bind type=dgram addr=@676F6F676C652D6E61636C2D6*,
  unix bind type=dgram addr="@676F6F676C652D6E61636C2D6*",

  but none of them match. The best I could do was:
  unix bind type=dgram,

  This is likely going to be important for snappy since snappy will have the concept of different coordinating snaps interacting via abstract sockets. What is interesting is that this seems to work ok for some things, eg:
  ./lightdm:  unix (bind, listen) type=stream addr="@/com/ubuntu/upstart-session/**",
  ./lightdm:  unix (bind, listen) type=stream addr="@/tmp/dbus-*",
  ./lightdm:  unix (bind, listen) type=stream addr="@/tmp/.ICE-unix/[0-9]*",
  ./lightdm:  unix (bind, listen) type=stream addr="@/dbus-vfs-daemon/*",
  ./lightdm:  unix (bind, listen) type=stream addr="@guest*",

  Is this something in how firefox is setting up the socket?

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