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Unrated severityNVD Advisory· Published Jan 23, 2026· Updated Feb 9, 2026

wifi: avoid kernel-infoleak from struct iw_point

CVE-2026-22978

Description

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

wifi: avoid kernel-infoleak from struct iw_point

struct iw_point has a 32bit hole on 64bit arches.

struct iw_point { void __user *pointer; /* Pointer to the data (in user space) */ __u16 length; /* number of fields or size in bytes */ __u16 flags; /* Optional params */ };

Make sure to zero the structure to avoid disclosing 32bits of kernel data to user space.

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