This bug was fixed in the package linux - 3.13.0-106.153
---------------
linux (3.13.0-106.153) trusty; urgency=low
[ Luis Henriques ]
* Release Tracking Bug
- LP: #1647749
* CVE-2016-7916
- proc: prevent accessing /proc/<PID>/environ until it's ready
* CVE-2016-6213
- mnt: Add a per mount namespace limit on the number of mounts
* aio completions are dropped (LP: #1641129)
- aio: fix reqs_available handling
* [Hyper-V] do not lose pending heartbeat vmbus packets (LP: #1632786)
- hv: do not lose pending heartbeat vmbus packets
* ipv6: connected routes are missing after a down/up cycle on the loopback
(LP: #1634545)
- ipv6: reallocate addrconf router for ipv6 address when lo device up
- ipv6: correctly add local routes when lo goes up
* audit: prevent a new auditd to stop an old auditd still alive (LP: #1633404)
- audit: stop an old auditd being starved out by a new auditd
* Setting net.ipv4.neigh.default.gc_thresh1/2/3 on 3.13.0-97.144 or later
causes 'invalid argument' error (LP: #1634892)
- neigh: fix setting of default gc_* values
* move nvme driver to linux-image (LP: #1640275)
- [Config] Add nvme to the generic inclusion list
-- Luis Henriques <[email protected]> Tue, 06 Dec 2016
15:00:27 +0000
** Changed in: linux (Ubuntu Trusty)
Status: Fix Committed => Fix Released
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-6213
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-7916
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https://bugs.launchpad.net/bugs/1641129
Title:
aio completions are dropped
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Trusty:
Fix Released
Bug description:
In 3.13.0-100-generic (14.04 stable kernel), we are hitting an old AIO
bug, described in this thread
http://www.gossamer-threads.com/lists/linux/kernel/1993181
reproduced by this
http://www.kvack.org/~bcrl/20140824-aio_bug.c
The bug was introduced by
f8567a3845ac05bb28f3c1b478ef752762bd39ef
and I believe it was fixed by
d856f32a86b2b015ab180ab7a55e455ed8d3ccc5
I'm not certain if there were follow-on fixes after that.
The bug is affecting Ceph OSD daemons, which hit this pretty reliably
when using the new BlueStore backend.
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