Linux Kernel mt7921 Firmware bounds validation flaw
CVE-2026-98159 Published on September 25, 2026
wifi: mt76: mt7921: validate CLC firmware records
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.
Products Associated with CVE-2026-98159
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Affected Versions
Linux:- Version 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and below 602a950134ee2940136f60797e4457c3983b06ce is affected.
- Version 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and below 3896be051e928c891922d91de94c99519d215dff is affected.
- Version 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and below 3c505e2af16a9320f4355218394a955fbbc65322 is affected.
- Version 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and below 9417c5818a0146980c2608fda94c908e604eb033 is affected.
- Version 6.1 is affected.
- Before 6.1 is unaffected.
- Version 6.12.111, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2.7, <= 7.2.* is unaffected.
- Version 7.3-rc1, <= * is unaffected.