What’s Vulnerable › Vulnerabilities

CVE-2026-22978: wifi: avoid kernel-infoleak from struct iw_point

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-23 · updated 2026-06-17

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.

Affected products

• Linux kernel: from 2.6.27 before 5.10.248; from 5.11 before 5.15.198; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6 — fixed in 5.10.248, 5.15.198, 6.1.161, 6.12.66, 6.18.6, 6.6.121

How to fix

Upgrade to a fixed version: Linux kernel 5.10.248, 5.15.198, 6.1.161, 6.12.66. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/024f71a57d563fbe162e528c8bf2d27e9cac7c7b
• https://git.kernel.org/stable/c/21cbf883d073abbfe09e3924466aa5e0449e7261
• https://git.kernel.org/stable/c/442ceac0393185e9982323f6682a52a53e8462b1
• https://git.kernel.org/stable/c/a3827e310b5a73535646ef4a552d53b3c8bf74f6
• https://git.kernel.org/stable/c/d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8
• https://git.kernel.org/stable/c/d943b5f592767b107ba8c12a902f17431350378c
• https://git.kernel.org/stable/c/e3c35177103ead4658b8a62f41e3080d45885464

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