CVE-2017-15127 Denial of service in Linux kernel before 4.13

What is CVE-2017-15127?

CVE-2017-15127 is a medium-severity denial of service vulnerability in Linux kernel, published on 14 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in the hugetlb_mcopy_atomic_pte function in mm/hugetlb.c in the Linux kernel before 4.13. A superfluous implicit page unlock for VM_SHARED hugetlbfs mapping could trigger a local denial of service (BUG).

Weakness: CWE-460

Which versions are affected by CVE-2017-15127?

It affects 3 products.

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

How do I fix CVE-2017-15127?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-15127 being exploited?

There is no known exploitation of CVE-2017-15127 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-2017-15127, GHSA-fq75-cvw3-5jx9, UBUNTU-CVE-2017-15127.