CVE-2018-19406 Null dereference in n/a

What is CVE-2018-19406?

CVE-2018-19406 is a medium-severity vulnerability in Linux kernel, published on 21 Nov 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

kvm_pv_send_ipi in arch/x86/kvm/lapic.c in the Linux kernel through 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where the apic map is uninitialized.

Weakness: CWE-476

Which versions are affected by CVE-2018-19406?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2018-19406?

No fix has been published for CVE-2018-19406 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-19406 being exploited?

There is no known exploitation of CVE-2018-19406 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7mv3-85q3-4cg5.