CVE-2022-4139 Memory corruption in kernel

High 7.8 Published 27 Jan 2023 Updated 14 Oct 2026

A local attacker can exploit an incorrect TLB flush in the i915 GPU driver to cause memory corruption, leading to system crashes or privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2022-4139?

CVE-2022-4139 is a high-severity memory corruption vulnerability in Linux kernel, published on 27 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An incorrect TLB flush issue was found in the Linux kernel’s GPU i915 kernel driver, potentially leading to random memory corruption or data leaks. This flaw could allow a local user to crash the system or escalate their privileges on the system.

Weakness: CWE-401, CWE-281

Which versions are affected by CVE-2022-4139?

It affects 1 product.

Linux distribution packages (21)

`kpatch-patch-4_18_0-372_13_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-4.el8_6`
`kpatch-patch-4_18_0-372_13_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-4.el8_6`
`kpatch-patch-4_18_0-372_13_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-4.el8_6`
`kpatch-patch-4_18_0-372_16_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-4.el8_6`
`kpatch-patch-4_18_0-372_16_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-4.el8_6`
`kpatch-patch-4_18_0-372_16_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-4.el8_6`
`kpatch-patch-4_18_0-372_19_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-3.el8_6`
`kpatch-patch-4_18_0-372_19_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-3.el8_6`
`kpatch-patch-4_18_0-372_19_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-3.el8_6`
`kpatch-patch-4_18_0-372_26_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-3.el8_6`
`kpatch-patch-4_18_0-372_26_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-3.el8_6`
`kpatch-patch-4_18_0-372_26_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-3.el8_6`
`kpatch-patch-4_18_0-372_32_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-2.el8_6`
`kpatch-patch-4_18_0-372_32_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-2.el8_6`
`kpatch-patch-4_18_0-372_32_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-2.el8_6`
`kpatch-patch-4_18_0-372_36_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-1.el8_6`
`kpatch-patch-4_18_0-372_36_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-1.el8_6`
`kpatch-patch-4_18_0-372_36_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-1.el8_6`
`kpatch-patch-4_18_0-372_40_1` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-1.el8_6`
`kpatch-patch-4_18_0-372_40_1-debuginfo` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-1.el8_6`
`kpatch-patch-4_18_0-372_40_1-debugsource` Red Hat:rhel_eus:8.6::baseos	All versions	`0:1-1.el8_6`

Products include Linux kernel.

How do I fix CVE-2022-4139?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-4139 being exploited?

There is no known exploitation of CVE-2022-4139 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-13247, DEBIAN-CVE-2022-4139, GHSA-hjjq-3jj4-c7c6, RHSA-2023:0441, UBUNTU-CVE-2022-4139, USN-6089-1.