SB2026070263 - NULL pointer dereference in Linux kernel i2c busses driver

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Main Vulnerability Database SB2026070263

SB2026070263 - NULL pointer dereference in Linux kernel i2c busses driver

Published: July 2, 2026

Security Bulletin ID SB2026070263
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2026-53339)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a NULL pointer dereference in cci_remove() in the i2c-qcom-cci driver when removing or unbinding the driver on systems where only one I2C master is initialized. A local user can trigger device unbinding or driver removal to cause a denial of service.

Only systems where the Qualcomm CCI controller exposes two I2C masters but only one master is enabled are affected.


Remediation

Install update from vendor's website.

References