CVE-2026-46136
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedMay 28, 2026
First seenMay 28, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7 or later
Patches
- git.kernel.org/stable/c/0aa63d33742b805d1a218d18d12b983cce4b2f7b
- git.kernel.org/stable/c/2a79b1a492bcfa725383b6580cd93a6862308c85
- git.kernel.org/stable/c/5373f8b19e568b5c217832b9bbef165bd2b2df14
- git.kernel.org/stable/c/90cc573fd2f46ddbc2c329e7814b5ba3deb7b939
- git.kernel.org/stable/c/a0111847f0b4f6023f6dd320114697514e024ba3
- git.kernel.org/stable/c/e451c325b000b9a0081fd93bc6d103d6943d4b55
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.1.75 ≤ v < 6.1.175, 6.6.14 ≤ v < 6.6.140, 6.7.2 ≤ v < 6.12.88, 6.13 ≤ v < 6.18.30, 6.19 ≤ v < 7.0.7 | 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7 |
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