CVE-2024-40933

Local kernel crash via unchecked error pointer

Published Jul 12, 2024 · Updated May 11, 2026

Error-pointer dereference in the Linux kernel 6.8 allows local users to crash the system during MLX90635 driver initialization. In mlx90635_probe(), failure of devm_regmap_init_i2c() can leave regmap_ee as an error pointer, but the code checks regmap and later dereferences regmap_ee. Reaching the fault requires local low-privileged access, an MLX90635 I2C device, and failed EEPROM regmap initialization; 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

Error-pointer dereference in the Linux kernel 6.8 allows local users to crash the system during MLX90635 driver initialization. In mlx90635_probe(), failure of devm_regmap_init_i2c() can leave regmap_ee as an error pointer, but the code checks regmap and later dereferences regmap_ee. Reaching the fault requires local low-privileged access, an MLX90635 I2C device, and failed EEPROM regmap initialization; impact is limited to a kernel crash.

The record

CVE
CVE-2024-40933
Published
Jul 12, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-754, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 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=6.8
  2. Affected versionversion=a1d1ba5e1c28b9887be1bdb3630caf0b532ec980 <5a5595ae8cc7cdaa1a10b56a26ddbe3429245c6c
  3. Affected versionversion=a1d1ba5e1c28b9887be1bdb3630caf0b532ec980 <a23c14b062d8800a2192077d83273bbfe6c7552d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=a1d1ba5e1c28b9887be1bdb3630caf0b532ec980 <5a5595ae8cc7cdaa1a10b56a26ddbe3429245c6c; version=a1d1ba5e1c28b9887be1bdb3630caf0b532ec980 <a23c14b062d8800a2192077d83273bbfe6c7552d

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.

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-754Improper Check for Unusual or Exceptional Conditions
T1499.004Application 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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