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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 3.14.7-1 | — |
| Debian 13 | linux | 3.14.7-1 | — |
| Debian 12 | linux | 3.14.7-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-32.57 | USN-2290-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | perf +17 | 3.10.0-229.el7 | RHSA-2015:0290 |
| RHEL 6 | perf +16 | 2.6.32-573.el6 | RHSA-2015:1272 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +10 | 3.10.33-rt32.43.el6rt | RHSA-2014:0913 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | perf +11 | 3.10.0-229.el7 | ELSA-2015-0290 |
Advisories 5
- RHSA-2015:1272 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:0290 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2290-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- RHSA-2014:0913 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ELSA-2015-0290 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 11, 2015
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1104097
- 59011 third-party-advisory
- [linux-kernel] 20140318 [PATCH RESEND -mm 1/2] mm: add !pte_present() check on existing hugetlb_entry callbacks mailing-list
- https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html
- RHSA-2015:0290 vendor-advisory
- [oss-security] 20140602 CVE-2014-3940 - Linux kernel - missing check during hugepage migration mailing-list
- 67786 vdb-entry
- 61310 third-party-advisory
- RHSA-2015:1272 vendor-advisory