CVE-2017-9986

CVE-2017-9986 is a high-severity vulnerability affecting the Linux kernel through version 4.11.7, specifically within the sound/oss/msnd_pinnacle.c component. This "double fetch" flaw allows a local attacker to cause a denial of service (over-boundary access) and potentially other unspecified impacts by manipulating a message queue head pointer. With a CVSS score of 7.8, it presents a high risk due to low attack complexity and potential for high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it has not garnered widespread attention.