CVE-2020-12657: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.

Affected products

• Linux Linux Kernel: before 5.6.5 (fixed in 5.6.5)

Published 2020-05-05. Last modified 2026-06-17.