CVE-2022-50364

Kernel crash via unchecked I2C mux resource

Published Sep 17, 2025 · Updated Sep 17, 2025

Null-pointer dereference in Linux allows local users to crash the kernel via a missing register resource for an I2C mux device. The i2c_mux_reg_probe function calls resource_size() on the value returned by platform_get_resource() without first checking whether that value is NULL. Exploitation requires local low-privileged access and an I2C mux-reg platform device with no register resource; the resulting kernel oops interrupts availability.

CVSS severity5.5
Medium
EPSS probability0.20%
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 allows local users to crash the kernel via a missing register resource for an I2C mux device. The i2c_mux_reg_probe function calls resource_size() on the value returned by platform_get_resource() without first checking whether that value is NULL. Exploitation requires local low-privileged access and an I2C mux-reg platform device with no register resource; the resulting kernel oops interrupts availability.

The record

CVE
CVE-2022-50364
Published
Sep 17, 2025
Updated
Sep 17, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=4.3
  2. Affected versionversion=b3fdd32799d834e2626fae087906e886037350c6 <2d47b79d2bd39cc6369eccf94a06568d84c906ae
  3. Affected versionversion=b3fdd32799d834e2626fae087906e886037350c6 <61df25c41b8e0d2c988ccf17139f70075a2e1ba4
  4. Affected versionversion=b3fdd32799d834e2626fae087906e886037350c6 <8212800943997fab61874550278d653cb378c60c
  5. Affected versionversion=b3fdd32799d834e2626fae087906e886037350c6 <f5049b3ad9446203b916ee375f30fa217735f63a
  6. Affected versionversion=b3fdd32799d834e2626fae087906e886037350c6 <f7a440c89b6d460154efeb058272760e41bdfea8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.3; version=b3fdd32799d834e2626fae087906e886037350c6 <2d47b79d2bd39cc6369eccf94a06568d84c906ae; version=b3fdd32799d834e2626fae087906e886037350c6 <61df25c41b8e0d2c988ccf17139f70075a2e1ba4; version=b3fdd32799d834e2626fae087906e886037350c6 <8212800943997fab61874550278d653cb378c60c; version=b3fdd32799d834e2626fae087906e886037350c6 <f5049b3ad9446203b916ee375f30fa217735f63a; version=b3fdd32799d834e2626fae087906e886037350c6 <f7a440c89b6d460154efeb058272760e41bdfea8

Published CVSS scores

5.5CISA-ADPCVSS: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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