CVE-2026-64236

CVE CVE-2026-64236EUVD EUVD-2026-48645Published 2026-07-24T15:27:41.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 7.0.12; b04ce63859793e3439b394976b8d29e785d4d69a <3f43865cb64dd7cb50efae1281a95585617b12a1; b04ce63859793e3439b394976b8d29e785d4d69a <030675aa54cf757769b3db65642433d626b3ed7c; patch: 0; 6.14; b04ce63859793e3439b394976b8d29e785d4d69a <9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9; patch: 6.18.35; patch: 7.1

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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