CVE-2017-18255

CVE-2017-18255 describes an integer overflow vulnerability in the Linux kernel, specifically within the perf_cpu_time_max_percent_handler function in kernel/events/core.c, affecting versions prior to 4.11. This flaw allows a local attacker to trigger a denial of service or potentially achieve other unspecified impacts through a large input value that leads to incorrect sample-rate calculations. With a CVSS v3 score of 7.8 (High), this vulnerability is easily exploitable locally with low attack complexity and user privileges, potentially leading to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.