CVE-2019-11811: Linux Kernel

High severity, CVSS 7.0. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c.

Affected products

• Linux Linux Kernel: from 4.18, before 4.19.31 (fixed in 4.19.31); from 4.20, before 5.0.4 (fixed in 5.0.4)
• Opensuse Leap: version 15.1 only
• Red Hat Enterprise Linux: version 7.0 only
• Red Hat Enterprise Linux Aus: version 7.6 only
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.4 only
• Red Hat Enterprise Linux Server Tus: version 7.4 only; version 7.6 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2019-05-07. Last modified 2026-06-17.