CVE-2018-7995: Canonical Ubuntu Linux

Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only
• Debian Debian Linux: version 7.0 only
• Linux Linux Kernel: up to and including 4.15.7

Published 2018-03-09. Last modified 2026-06-17.