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Vulnerability record · CVE-2026-98159 · published 25 September 2026

CVE-2026-98159: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: validate CLC firmware records The CLC region is supplied by firmware, but the loader trusts the region count and each record length. A malformed image can make the region table pointer precede the firmware buffer, make the record loop fail to advance, or index phy->clc past its end. Validate the table and record bounds before dereferencing or copying.

5.5 CVSS 3.1 Medium EPSS 0.11% · top 98.5% CWE-787 · Out-of-bounds write
5.5CVSS 3.1 base score
0.11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
19 Oct 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: validate CLC firmware records The CLC region is supplied by firmware, but the loader trusts the region count and each record length. A malformed image can make the region table pointer precede the firmware buffer, make the record loop fail to advance, or index phy->clc past its end. Validate the table and record bounds before dereferencing or copying.

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

Affected products

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

References

LinkTags
https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff Patch
https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322 Patch
https://git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05 Patch
https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce Patch
https://git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02 Patch
https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-98159), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.