CVE-2026-64236

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

i2c: davinci: fix division by zero on missing clock-frequency

When the 'clock-frequency' property is missing from the device tree,

the driver falls back to DAVINCI_I2C_DEFAULT_BUS_FREQ. However, this

macro was defined in kHz (100), whereas the device tree property is

expected in Hz.

The probe function divided the fallback value by 1000, causing

integer truncation that resulted in dev->bus_freq = 0. This triggered

a deterministic division-by-zero kernel panic when calculating clock

dividers later in the probe sequence.

Fix this by redefining DAVINCI_I2C_DEFAULT_BUS_FREQ in Hz (100000)

to match the expected device tree property unit, allowing the existing

division logic to work correctly for both cases.