CVE-2023-53834

iio: adc: ina2xx: avoid NULL pointer dereference on OF device match

State
Published
Severity
Not scored
Published
Dec 9, 2025
Updated
May 11, 2026
Reserved
Dec 9, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

iio: adc: ina2xx: avoid NULL pointer dereference on OF device match

The affected lines were resulting in a NULL pointer dereference on our platform because the device tree contained the following list of compatible strings:

power-sensor@40 { compatible = "ti,ina232", "ti,ina231"; ... };

Since the driver doesn't declare a compatible string "ti,ina232", the OF matching succeeds on "ti,ina231". But the I2C device ID info is populated via the first compatible string, cf. modalias population in of_i2c_get_board_info(). Since there is no "ina232" entry in the legacy I2C device ID table either, the struct i2c_device_id *id pointer in the probe function is NULL.

Fix this by using the already populated type variable instead, which points to the proper driver data. Since the name is also wanted, add a generic one to the ina2xx_config table.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c43a102e67db99c8bfe6e8a9280cec13ff53b789 to before a8e2ae6296d56478fb98ae7f739846ed121f154fAffected
  • c43a102e67db99c8bfe6e8a9280cec13ff53b789 to before 77b689cc27d489b75d33f1a368356d70eb0ce08cAffected
  • c43a102e67db99c8bfe6e8a9280cec13ff53b789 to before 13f3ce53b65aa8b44cad7039d31e62c9ffd6c5d1Affected
  • c43a102e67db99c8bfe6e8a9280cec13ff53b789 to before a41e19cc0d6b6a445a4133170b90271e4a2553dcAffected
LinuxLinux
  • 4.5Affected
  • before 4.5Not affected
  • 5.15.127 through 5.15.*Not affected
  • 6.1.46 through 6.1.*Not affected
  • 6.4.11 through 6.4.*Not affected
  • 6.5 and laterNot affected

References

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