> CVE-2026-64236

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PUBLISHED
2026-07-24 16:16
MODIFIED
2026-07-24 16:16
EPSS (Prob. Exploit)
0.16%
Top 95.2%
DATA SOURCES:
NVD 🔗 2026-07-24 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-09-21

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

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

AFFECTED PACKAGES:
Unknown / Unknown
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
24/07/2026 16:16
Source: NVD
Total des modifications: 0 Dernière mise à jour: 3 months ago

> REFERENCES

https://git.kernel.org/stable/c/030675aa54cf757769b3db65642433d626b3ed7c
https://git.kernel.org/stable/c/3f43865cb64dd7cb50efae1281a95585617b12a1
https://git.kernel.org/stable/c/9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9
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