CVE-2017-10661: Debian Linux

High severity, CVSS 7.0. EPSS: 13.4% chance of exploitation in the next 30 days.

Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Linux Linux Kernel: before 3.2.92 (fixed in 3.2.92); from 3.3, before 3.16.47 (fixed in 3.16.47); from 3.17, before 3.18.52 (fixed in 3.18.52); from 3.19, before 4.1.41 (fixed in 4.1.41); from 4.2, before 4.4.67 (fixed in 4.4.67); from 4.5, before 4.9.27 (fixed in 4.9.27); …
• Red Hat Enterprise Linux: version 7.0 only
• Red Hat Enterprise Linux Aus: version 7.4 only
• Red Hat Enterprise Linux Server Eus: version 7.5 only
• Red Hat Enterprise Linux Server For Power Little Endian Update Services For SAP Solutions: version 7.4 only

Published 2017-08-19. Last modified 2026-06-17.