CVE-2018-12714: Linux Kernel

Critical severity, CVSS 9.8. EPSS: 5.1% chance of exploitation in the next 30 days.

An issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one line to have been read, thus making the N-1 index invalid. This allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via crafted perf_event_open and mmap system calls.

Affected products

• Linux Linux Kernel: from 4.17, before 4.17.4 (fixed in 4.17.4)

Published 2018-06-24. Last modified 2026-06-17.