CVE-2024-44936

Kernel crash via missing RT5033 client data

Published Aug 26, 2024 · Updated May 11, 2026

Null pointer dereference in Linux's RT5033 battery driver in 6.9 through 6.10.4 and 6.11-rc1 through 6.11-rc2 allows local users to crash the kernel. The probe path registers the power supply without restoring the I2C client data pointer, while status handling retrieves and dereferences that unset pointer. Reaching the fault requires an RT5033 battery device and local access to its power-supply status path; the resulting kernel oops interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.18%
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 Linux's RT5033 battery driver in 6.9 through 6.10.4 and 6.11-rc1 through 6.11-rc2 allows local users to crash the kernel. The probe path registers the power supply without restoring the I2C client data pointer, while status handling retrieves and dereferences that unset pointer. Reaching the fault requires an RT5033 battery device and local access to its power-supply status path; the resulting kernel oops interrupts the host.

The record

CVE
CVE-2024-44936
Published
Aug 26, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-119, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2024CVE 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=3a93da231c12bb153224bbbdd3d9a83da9e0ba33 <3c5d0871b0af0184abc6f7f52f8705b39a6251ae
  2. Affected versionversion=3a93da231c12bb153224bbbdd3d9a83da9e0ba33 <d3911f1639e67fc7b12aae0efa5a540976d7443b
  3. Affected versionversion=6.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3a93da231c12bb153224bbbdd3d9a83da9e0ba33 <3c5d0871b0af0184abc6f7f52f8705b39a6251ae; version=3a93da231c12bb153224bbbdd3d9a83da9e0ba33 <d3911f1639e67fc7b12aae0efa5a540976d7443b; version=6.9

Published CVSS scores

5.5UbuntuCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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