CVE-2022-49060

Kernel crash via unchecked device parent pointer

Published Feb 26, 2025 · Updated May 11, 2026

NULL pointer dereference in the Linux kernel allows local users to crash the kernel during an SMC InfiniBand device lookup. The smc_pnet_find_ib() path passes dev.parent to dev_name() without first checking whether the parent pointer is NULL. Reachability requires local low-privileged access and an SMC PNET lookup that encounters a device with no parent.

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

NULL pointer dereference in the Linux kernel allows local users to crash the kernel during an SMC InfiniBand device lookup. The smc_pnet_find_ib() path passes dev.parent to dev_name() without first checking whether the parent pointer is NULL. Reachability requires local low-privileged access and an SMC PNET lookup that encounters a device with no parent.

The record

CVE
CVE-2022-49060
Published
Feb 26, 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. 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

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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=5.1
  2. Affected versionversion=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <22025513ced3d599ee8b24169141c95cf2467a4a
  3. Affected versionversion=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <35b91e49bc80ca944a8679c3b139ddaf2f8eea0f
  4. Affected versionversion=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <3a523807f01455fe9a0c1a433f27cd4411ee400f
  5. Affected versionversion=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <a05f5e26cb8bb4d07e0595545fcad1bb406f0085
  6. Affected versionversion=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <d22f4f977236f97e01255a80bca2ea93a8094fc8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.1; version=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <22025513ced3d599ee8b24169141c95cf2467a4a; version=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <35b91e49bc80ca944a8679c3b139ddaf2f8eea0f; version=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <3a523807f01455fe9a0c1a433f27cd4411ee400f; version=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <a05f5e26cb8bb4d07e0595545fcad1bb406f0085; version=af5f60c7e3d593c2fa31b9a62c16eae75f074de3 <d22f4f977236f97e01255a80bca2ea93a8094fc8

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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