CVE-2022-2153: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 36 only
• Linux Linux Kernel: before 5.18 (fixed in 5.18)
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only; version 8.0 only; version 9.0 only

Published 2022-08-31. Last modified 2026-06-17.