CVE-2022-50276

Kernel crash via unchecked property-name allocation

Published Sep 15, 2025 · Updated Sep 15, 2025

NULL pointer dereference in affected Linux kernel builds allows local users to crash the kernel during battery-information retrieval. A failed kasprintf allocation leaves propname NULL in power_supply_get_battery_info, which passes it to of_get_property for strcmp-based lookup without a NULL check. Exploitation requires low-privileged local access and allocation failure while battery data is read; the documented consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.16%
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 builds allows local users to crash the kernel during battery-information retrieval. A failed kasprintf allocation leaves propname NULL in power_supply_get_battery_info, which passes it to of_get_property for strcmp-based lookup without a NULL check. Exploitation requires low-privileged local access and allocation failure while battery data is read; the documented consequence is a kernel crash.

The record

CVE
CVE-2022-50276
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record 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=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <104bb8a663451404a26331263ce5b96c34504049
  2. Affected versionversion=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <279af90e65cbdb3e5c4519b0043324d7876bc5ec
  3. Affected versionversion=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <5beadb55f4e36fafe5d6df5dcd5f85d803f3f134
  4. Affected versionversion=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <8ea68b4e3fa9392ef9dae303abc8735a033c280f
  5. Affected versionversion=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <b8131efb89d9f837c9244f900f0fc2699fd1181d
  6. Affected versionversion=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <d21534ab4fd7883e1c8037a76671d4e8b6ea14cb
  7. Affected versionversion=5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <104bb8a663451404a26331263ce5b96c34504049; version=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <279af90e65cbdb3e5c4519b0043324d7876bc5ec; version=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <5beadb55f4e36fafe5d6df5dcd5f85d803f3f134; version=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <8ea68b4e3fa9392ef9dae303abc8735a033c280f; version=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <b8131efb89d9f837c9244f900f0fc2699fd1181d; version=3afb50d7125bcdbf71df843134e96ceffc78c8b8 <d21534ab4fd7883e1c8037a76671d4e8b6ea14cb; version=5.0

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
T1499.004Application 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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