CVE-2022-49190

Kernel crash via incorrect bootmem resource release

Published Feb 26, 2025 · Updated May 11, 2026

Improper resource release in the Linux kernel allows local users to crash the kernel through boot-time resource teardown. Code paths can pass a resource returned by alloc_resource() during boot to kfree() instead of the required free_resource(), producing a kernel BUG. Reachability requires local low-privileged access and a path that releases a resource originating in boot memory; the demonstrated consequence is an availability loss.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper resource release in the Linux kernel allows local users to crash the kernel through boot-time resource teardown. Code paths can pass a resource returned by alloc_resource() during boot to kfree() instead of the required free_resource(), producing a kernel BUG. Reachability requires local low-privileged access and a path that releases a resource originating in boot memory; the demonstrated consequence is an availability loss.

The record

CVE
CVE-2022-49190
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=3.10
  2. Affected versionversion=ebff7d8f270d045338d9f4796014f4db429a17f9 <0cbcc92917c5de80f15c24d033566539ad696892
  3. Affected versionversion=ebff7d8f270d045338d9f4796014f4db429a17f9 <3379a60f6bb4afcd9c456e340ac525ae649d3ce7
  4. Affected versionversion=ebff7d8f270d045338d9f4796014f4db429a17f9 <a9e88c2618d228d7a4e7e515cf30dc0d0d813f27
  5. Affected versionversion=ebff7d8f270d045338d9f4796014f4db429a17f9 <ab86020070999e758ce2e60c4348f20bf7ddba56
  6. Affected versionversion=ebff7d8f270d045338d9f4796014f4db429a17f9 <d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=ebff7d8f270d045338d9f4796014f4db429a17f9 <0cbcc92917c5de80f15c24d033566539ad696892; version=ebff7d8f270d045338d9f4796014f4db429a17f9 <3379a60f6bb4afcd9c456e340ac525ae649d3ce7; version=ebff7d8f270d045338d9f4796014f4db429a17f9 <a9e88c2618d228d7a4e7e515cf30dc0d0d813f27; version=ebff7d8f270d045338d9f4796014f4db429a17f9 <ab86020070999e758ce2e60c4348f20bf7ddba56; version=ebff7d8f270d045338d9f4796014f4db429a17f9 <d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8

Published CVSS scores

5.5CanonicalCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

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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