CVE-2022-49824

Kernel crash via unchecked transport device addition

Published May 1, 2025 · Updated May 11, 2026

NULL pointer dereference in affected Linux kernel branches from 2.6.37 to 6.1-rc4 allows local users to crash the kernel during ATA removal. ata_tlink_add ignores a failed transport_add_device call, leaving cleanup to pass an unregistered device to transport_remove_device. Triggering the crash requires the ATA transport device-add path to fail and the affected module subsequently to be removed; impact is limited to a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in affected Linux kernel branches from 2.6.37 to 6.1-rc4 allows local users to crash the kernel during ATA removal. ata_tlink_add ignores a failed transport_add_device call, leaving cleanup to pass an unregistered device to transport_remove_device. Triggering the crash requires the ATA transport device-add path to fail and the affected module subsequently to be removed; impact is limited to a kernel crash.

The record

CVE
CVE-2022-49824
Published
May 1, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 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

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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=2.6.37
  2. Affected versionversion=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <67b219314628b90b3a314528e177335b0cd5c70b
  3. Affected versionversion=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <7377a14598f6b04446c54bc4a50cd249470d6c6f
  4. Affected versionversion=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <cf0816f6322c5c37ee52655f928e91ecf32da103
  5. Affected versionversion=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <d5234480ca822bdcf03fe4d6a590ddcb854558f7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2.6.37; version=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <67b219314628b90b3a314528e177335b0cd5c70b; version=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <7377a14598f6b04446c54bc4a50cd249470d6c6f; version=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <cf0816f6322c5c37ee52655f928e91ecf32da103; version=d9027470b88631d0956ac37cdadfdeb9cdcf2c99 <d5234480ca822bdcf03fe4d6a590ddcb854558f7

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-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application 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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