CVE-2023-53834

published 2025-12-09

CVE-2023-53834: 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…

Priority P4 24

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.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.1.52-1 (bookworm)	linux 6.1.52-1 (bookworm)
linux	linux	—	—
linux	linux	>= c43a102e67db99c8bfe6e8a9280cec13ff53b789 < a8e2ae6296d56478fb98ae7f739846ed121f154f	a8e2ae6296d56478fb98ae7f739846ed121f154f
linux	linux	>= c43a102e67db99c8bfe6e8a9280cec13ff53b789 < 77b689cc27d489b75d33f1a368356d70eb0ce08c	77b689cc27d489b75d33f1a368356d70eb0ce08c
linux	linux	>= c43a102e67db99c8bfe6e8a9280cec13ff53b789 < 13f3ce53b65aa8b44cad7039d31e62c9ffd6c5d1	13f3ce53b65aa8b44cad7039d31e62c9ffd6c5d1
linux	linux	>= c43a102e67db99c8bfe6e8a9280cec13ff53b789 < a41e19cc0d6b6a445a4133170b90271e4a2553dc	a41e19cc0d6b6a445a4133170b90271e4a2553dc
linux	linux_kernel	>= 0 < 6.1.52-1	6.1.52-1
linux	linux_kernel	>= 0 < 6.4.11-1	6.4.11-1
linux	linux_kernel	>= 0 < 6.4.11-1	6.4.11-1
linux	linux_kernel	>= 4.5.0 < 5.15.127	5.15.127
linux	linux_kernel	>= 5.16.0 < 6.1.46	6.1.46
linux	linux_kernel	>= 6.2.0 < 6.4.11	6.4.11

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