What’s Vulnerable › Vulnerabilities

CVE-2026-98678: iio: adc: ad4030: fix invalid oversampling_ratio validation

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad4030: fix invalid oversampling_ratio validation In ad4030_set_avg_frame_len(), the logarithm is calculated before input validation. Passing zero or negative values leads to an undefined result from ilog2(). Validate that the input is strictly positive prior to computing its logarithm.

Affected products

• Linux kernel: 6.15 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6b0cc4e32599f59c994a60743f53fc72cb2979f4
• https://git.kernel.org/stable/c/6ca6dcbaa68c5e6dc4df171a32c5822e1a4c66c1
• https://git.kernel.org/stable/c/d615210564205993e8f0e7ccb57cc2e66b7d5706

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