Chrome OS Version: 8872.54.0
Chrome OS Platform: elm

Example feedback report:
https://feedback.corp.google.com/product/208/neutron?lView=rd&lReport=17785663137

Steps To Reproduce:
(1) Inspect dmesg
(2)
(3)

Expected Result:

No "qtaguid" messages.

Actual Result:

[90124.191726] qtaguid: ctrl_untag(u -1): failed to lookup sock_fd=-1 err=-9 pid=20358 tgid=20257 uid=10046
[90133.469149] audit: type=1400 audit(1480283692.792:10963): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2557064]" dev="sockfs" ino=2557064 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90133.605479] audit: type=1400 audit(1480283692.928:10964): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2557066]" dev="sockfs" ino=2557066 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90136.881011] audit: type=1400 audit(1480283696.204:10965): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2553051]" dev="sockfs" ino=2553051 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90143.474871] audit: type=1400 audit(1480283702.800:10966): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2553056]" dev="sockfs" ino=2553056 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90153.479975] audit: type=1400 audit(1480283712.804:10967): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2557072]" dev="sockfs" ino=2557072 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90154.011416] audit: type=1400 audit(1480283713.336:10968): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2553062]" dev="sockfs" ino=2553062 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90156.924864] audit: type=1400 audit(1480283716.248:10969): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2550547]" dev="sockfs" ino=2550547 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90157.244547] audit: type=1400 audit(1480283716.568:10970): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2550552]" dev="sockfs" ino=2550552 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90163.510509] audit: type=1400 audit(1480283722.836:10971): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2550557]" dev="sockfs" ino=2550557 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90165.992784] qtaguid: ctrl_tag(t -1 0 -1): failed to lookup sock_fd=-1 err=-9 pid=20313 tgid=20257 uid=10046
[90166.483596] qtaguid: ctrl_untag(u -1): failed to lookup sock_fd=-1 err=-9 pid=20313 tgid=20257 uid=10046
[90173.493675] audit: type=1400 audit(1480283732.816:10972): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2553087]" dev="sockfs" ino=2553087 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90176.973941] audit: type=1400 audit(1480283736.300:10973): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2557095]" dev="sockfs" ino=2557095 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90177.199435] audit: type=1400 audit(1480283736.524:10974): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2553094]" dev="sockfs" ino=2553094 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90183.496454] audit: type=1400 audit(1480283742.820:10975): avc:  denied  { ioctl } for  pid=4415 comm="netfilter-queue" path="socket:[2553101]" dev="sockfs" ino=2553101 ioctlcmd=8910 scontext=u:r:chromeos:s0 tcontext=u:r:chromeos:s0 tclass=unix_dgram_socket permissive=1
[90184.123999] qtaguid: ctrl_tag(t -1 0 -1): failed to lookup sock_fd=-1 err=-9 pid=20360 tgid=20257 uid=10046
[90184.206290] qtaguid: ctrl_untag(u -1): failed to lookup sock_fd=-1 err=-9 pid=20360 tgid=20257 uid=10046


How frequently does this problem reproduce? (Always, sometimes, hard to
reproduce?)

Unclear, I saw this in a couple of feedback reports.

Assigning to cernekee, since from b/31288468 I infer he might know what qtaguid is :-).