CVE-2017-9986 Race condition in n/a

What is CVE-2017-9986?

CVE-2017-9986 is a high-severity vulnerability in Linux kernel, published on 28 Jun 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The intr function in sound/oss/msnd_pinnacle.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.

Weakness: CWE-125

Which versions are affected by CVE-2017-9986?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2017-9986?

Apply the vendor's patch.

Is CVE-2017-9986 being exploited?

There is no known exploitation of CVE-2017-9986 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-2017-9986, GHSA-q852-rrp3-mmg5, UBUNTU-CVE-2017-9986.