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Vulnerability record · CVE-2026-22978 · published 23 January 2026

CVE-2026-22978: Linux kernel vulnerability

Linux · Linux Kernel

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.

3.3 CVSS 3.1 Low EPSS 0.14% · top 97.6%
3.3CVSS 3.1 base score
0.14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-22978), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.