CVE-2022-3169

System crash via unchecked NVMe register access

Published Sep 9, 2022 · Updated Aug 3, 2024

Denial of service in the Linux kernel 4.19 NVMe driver allows local users to crash the system through consecutive reset ioctls. The reset path disconnects the PCIe link, then nvme_pci_reg_write32 accesses a controller register without validating that its BAR mapping remains valid. Access to an NVMe controller device file is required; rapidly issuing both reset ioctls triggers a kernel paging fault and system crash.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel 4.19 NVMe driver allows local users to crash the system through consecutive reset ioctls. The reset path disconnects the PCIe link, then nvme_pci_reg_write32 accesses a controller register without validating that its BAR mapping remains valid. Access to an NVMe controller device file is required; rapidly issuing both reset ioctls triggers a kernel paging fault and system crash.

The record

CVE
CVE-2022-3169
Published
Sep 9, 2022
Updated
Aug 3, 2024
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-20, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.19

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=4.19

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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