Bug 2546356 (CVE-2026-98193) - CVE-2026-98193 kernel: wifi: libipw: reject TKIP frames without a full MIC
Summary: CVE-2026-98193 kernel: wifi: libipw: reject TKIP frames without a full MIC
Keywords:
Status: NEW
Alias: CVE-2026-98193
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-06 09:04 UTC by OSIDB Bzimport
Modified: 2026-10-08 17:37 UTC (History)
17 users (show)

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


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Description OSIDB Bzimport 2026-10-06 09:04:54 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: libipw: reject TKIP frames without a full MIC

libipw_michael_mic_verify() assumes that an skb contains an eight-byte
Michael MIC. A short TKIP frame makes the unsigned payload length wrap,
causing michael_mic() to read past the skb.

Check that the MIC is present before verifying it, and use the existing
MICHAEL_MIC_LEN constant for all MIC lengths in the verifier.


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