Bug 2540350 (CVE-2026-93281) - CVE-2026-93281 kernel: wifi: rtw89: fix HE extended capability length check
Summary: CVE-2026-93281 kernel: wifi: rtw89: fix HE extended capability length check
Keywords:
Status: NEW
Alias: CVE-2026-93281
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 16:23 UTC by OSIDB Bzimport
Modified: 2026-09-28 13:42 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-24 16:23:44 UTC 
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].
Comment 1 gkamathe 2026-09-28 13:36:37 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93281.mbox
Note You need to log in before you can comment on or make changes to this bug.