CVE-2026-93281
Linux: wifi: rtw89: fix HE extended capability length check
Linux LinuxOperating systemsCVSS
NoneNot scoredExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.19%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in655c4401c18d735dbaf2cc172ff4f626b3a896a0Also 2aba608a86e9b099c9af2ea70b620552dee2b628CVE List
What fixes it
- 655c4401c18d735dbaf2cc172ff4f626b3a896a0LinuxCVE List
- 2aba608a86e9b099c9af2ea70b620552dee2b628LinuxCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: fix HE extended capability length check
rtw89_mac_check_he_obss_narrow_bw_ru_iter() reads extended capability byte 10, but rejects only datalen values below 10. Byte 10 requires at least 11 bytes.
Require datalen >= 11 before reading data[10].
Text from CVE List
Affected versions 14
- Linuxaffected: 8d540f9d29162e273797bef36686a010724f0f8a before eddf53f1edb0cf7f302bd15cdb47cca90948c205CVE List
- Linuxaffected: 8d540f9d29162e273797bef36686a010724f0f8a before 655c4401c18d735dbaf2cc172ff4f626b3a896a0CVE List
- Linuxaffected: 8d540f9d29162e273797bef36686a010724f0f8a before bddbd1de765bf6ddc0473ad683910eb3a2a92a43CVE List
- Linuxaffected: 8d540f9d29162e273797bef36686a010724f0f8a before f2a01deff7d0d5cc3dcbf2358dac113979303c8eCVE List
- Linuxaffected: 8d540f9d29162e273797bef36686a010724f0f8a before f132fc01b359a0f7d81fe13d769ea4e7c4baa66eCVE List
- Linuxaffected: 8d540f9d29162e273797bef36686a010724f0f8a before 2aba608a86e9b099c9af2ea70b620552dee2b628CVE List
- Linuxaffected: 6.1CVE List
- Linuxunaffected: all versions before 6.1CVE List
- Linuxunaffected: 6.1.188 through 6.1.*CVE List
- Linuxunaffected: 6.6.157 through 6.6.*CVE List
- Linuxunaffected: 6.12.110 through 6.12.*CVE List
- Linuxunaffected: 6.18.52 through 6.18.*CVE List
- Linuxunaffected: 7.2.6 through 7.2.*CVE List
- Linuxunaffected: 7.3CVE List
References 6
- git.kernel.org/stable/c/eddf53f1edb0cf7f302bd15cdb47cca90948c205Referencevia CVE List
- git.kernel.org/stable/c/655c4401c18d735dbaf2cc172ff4f626b3a896a0Referencevia CVE List
- git.kernel.org/stable/c/bddbd1de765bf6ddc0473ad683910eb3a2a92a43Referencevia CVE List
- git.kernel.org/stable/c/f2a01deff7d0d5cc3dcbf2358dac113979303c8eReferencevia CVE List
- git.kernel.org/stable/c/f132fc01b359a0f7d81fe13d769ea4e7c4baa66eReferencevia CVE List
- git.kernel.org/stable/c/2aba608a86e9b099c9af2ea70b620552dee2b628Referencevia CVE List