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

wifi: mt76: mt7921: fix a potential clc buffer length underflow

The buf_len is used to limit the iterations for retrieving the country
power setting and may underflow under certain conditions due to changes
in the power table in CLC.

This underflow leads to an almost infinite loop or an invalid power
setting resulting in driver initialization failure.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
15173a1697236793e9e900b82fece6f99d41b2a7 affected < e451c325b000b9a0081fd93bc6d103d6943d4b55
fa6ad88e023ddfa6c5dcdb466d159e89f451e305 affected < 90cc573fd2f46ddbc2c329e7814b5ba3deb7b939
fa6ad88e023ddfa6c5dcdb466d159e89f451e305 affected < 0aa63d33742b805d1a218d18d12b983cce4b2f7b
fa6ad88e023ddfa6c5dcdb466d159e89f451e305 affected < a0111847f0b4f6023f6dd320114697514e024ba3
fa6ad88e023ddfa6c5dcdb466d159e89f451e305 affected < 5373f8b19e568b5c217832b9bbef165bd2b2df14
0c9318d49e501a5d50b02bd91a4813bde2353488 affected —
5c8cac512844ad593d31258e215908014381bee2 affected —
6.6.14 affected < 6.6.140
6.1.75 affected < 6.2
6.7.2 affected < 6.8
Linux Linux affected
Version Status Constraints
6.8 affected —
0 unaffected < 6.8
6.6.140 unaffected ≤ 6.6.*
6.12.88 unaffected ≤ 6.12.*
6.18.30 unaffected ≤ 6.18.*
7.0.7 unaffected ≤ 7.0.*
7.1-rc1 unaffected ≤ *

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0aa63d33742b805d1a218d18d12b983cce4b2f7b cve-icon cve-icon
https://git.kernel.org/stable/c/5373f8b19e568b5c217832b9bbef165bd2b2df14 cve-icon cve-icon
https://git.kernel.org/stable/c/90cc573fd2f46ddbc2c329e7814b5ba3deb7b939 cve-icon cve-icon
https://git.kernel.org/stable/c/a0111847f0b4f6023f6dd320114697514e024ba3 cve-icon cve-icon
https://git.kernel.org/stable/c/e451c325b000b9a0081fd93bc6d103d6943d4b55 cve-icon cve-icon
History

Thu, 28 May 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-674
CWE-703

Thu, 28 May 2026 10:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix a potential clc buffer length underflow The buf_len is used to limit the iterations for retrieving the country power setting and may underflow under certain conditions due to changes in the power table in CLC. This underflow leads to an almost infinite loop or an invalid power setting resulting in driver initialization failure.
Title wifi: mt76: mt7921: fix a potential clc buffer length underflow
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-28T09:35:52.004Z

Reserved: 2026-05-13T15:03:33.099Z

Link: CVE-2026-46136

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-28T10:16:29.160

Modified: 2026-05-28T10:16:29.160

Link: CVE-2026-46136

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-28T12:30:16Z

Weaknesses