CVE-2014-3940
Description
The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows local users to cause a denial of service (memory corruption or system crash) by accessing certain memory locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage migration, related to fs/proc/task_mmu.c and mm/mempolicy.c.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 3.14.7-1 |
| debian | bullseye | fixed | 3.14.7-1 |
| debian | forky | fixed | 3.14.7-1 |
| debian | sid | fixed | 3.14.7-1 |
| debian | trixie | fixed | 3.14.7-1 |
| linux-kernel | affected | | |
| linux-kernel | 3.14 | affected | |
| linux-kernel | 3.14.1 | affected | |
| linux-kernel | 3.14.2 | affected | |
| linux-kernel | 3.14.3 | affected | |
| linux-kernel | 3.14.4 | affected | |
| rhel | 6.0 | affected | |
References
- http://rhn.redhat.com/errata/RHSA-2015-0290.html
- http://rhn.redhat.com/errata/RHSA-2015-1272.html
- http://secunia.com/advisories/59011
- http://secunia.com/advisories/61310
- http://www.openwall.com/lists/oss-security/2014/06/02/5
- http://www.securityfocus.com/bid/67786
- https://bugzilla.redhat.com/show_bug.cgi?id=1104097
- https://lkml.org/lkml/2014/3/18/784
- https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html
- https://security-tracker.debian.org/tracker/CVE-2014-3940
CWEs
CWE-362
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.