CVE-2014-3940 Race condition in n/a

What is CVE-2014-3940?

CVE-2014-3940 is a medium-severity vulnerability in Linux kernel, published on 5 Jun 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-362

Which versions are affected by CVE-2014-3940?

It affects 3 products.

Products include Linux kernel, Redhat Enterprise Linux, Redhat Enterprise Mrg.

How do I fix CVE-2014-3940?

Apply the vendor's patch.

Is CVE-2014-3940 being exploited?

There is no known exploitation of CVE-2014-3940 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2014-3940, GHSA-pp3m-vq48-qr56, UBUNTU-CVE-2014-3940.