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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.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-28 | Updated 2026-06-01 | Assigner Linux

Product status

Default status
unaffected

0c9318d49e501a5d50b02bd91a4813bde2353488 (git) before 2a79b1a492bcfa725383b6580cd93a6862308c85
affected

15173a1697236793e9e900b82fece6f99d41b2a7 (git) before e451c325b000b9a0081fd93bc6d103d6943d4b55
affected

fa6ad88e023ddfa6c5dcdb466d159e89f451e305 (git) before 90cc573fd2f46ddbc2c329e7814b5ba3deb7b939
affected

fa6ad88e023ddfa6c5dcdb466d159e89f451e305 (git) before 0aa63d33742b805d1a218d18d12b983cce4b2f7b
affected

fa6ad88e023ddfa6c5dcdb466d159e89f451e305 (git) before a0111847f0b4f6023f6dd320114697514e024ba3
affected

fa6ad88e023ddfa6c5dcdb466d159e89f451e305 (git) before 5373f8b19e568b5c217832b9bbef165bd2b2df14
affected

5c8cac512844ad593d31258e215908014381bee2 (git)
affected

6.1.75 (semver) before 6.1.175
affected

6.6.14 (semver) before 6.6.140
affected

6.7.2 (semver) before 6.8
affected

Default status
affected

6.8
affected

Any version before 6.8
unaffected

6.1.175 (semver)
unaffected

6.6.140 (semver)
unaffected

6.12.88 (semver)
unaffected

6.18.30 (semver)
unaffected

7.0.7 (semver)
unaffected

7.1-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/2a79b1a492bcfa725383b6580cd93a6862308c85

git.kernel.org/...c/e451c325b000b9a0081fd93bc6d103d6943d4b55

git.kernel.org/...c/90cc573fd2f46ddbc2c329e7814b5ba3deb7b939

git.kernel.org/...c/0aa63d33742b805d1a218d18d12b983cce4b2f7b

git.kernel.org/...c/a0111847f0b4f6023f6dd320114697514e024ba3

git.kernel.org/...c/5373f8b19e568b5c217832b9bbef165bd2b2df14

cve.org (CVE-2026-46136)

nvd.nist.gov (CVE-2026-46136)

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