PT-2026-61253 · Linux · Linux

CVE-2026-63936

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Published

2026-07-19

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Updated

2026-07-19

None

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In the Linux kernel, the following vulnerability has been resolved:
iio: adc: mt6359: fix unchecked return value in mt6358 read imp
In mt6358 read imp(), the variable val v is passed to regmap read() but the return value is not checked. If the read fails, val v remains uninitialized and its random stack content is subsequently reported as a measurement result.
Initialize val v to zero to ensure a predictable value is reported in case of bus failure and to prevent potential stack data leakage. This also satisfies static analyzers that might otherwise flag the variable as used uninitialized.
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Related Identifiers

CVE-2026-63936

Affected Products

Linux