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  4. CVE 2026 98329 wifi mac80211 dont allow injecting frames wider
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-98329

wifi: mac80211: don't allow injecting frames wider than the chanctxCVE-2026-98329

Answer in brief

CVE-2026-98329 records a Unknown severity vulnerability in wifi: mac80211: don't allow injecting frames wider than the chanctx. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 6, 2026Updated Oct 6, 2026Source checked Oct 6, 2026First seen by HOL Oct 6, 2026Material review Oct 6, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=646e76bb5daf4ca38438c69ffb72cccb605f3466 <a5c715eda066cba5ce3372759188ba8636dca629 || >=646e76bb5daf4ca38438c69ffb72cccb605f3466 <73f48f7e16cadfc74f444ccd10c1d3ae253e2e27 || >=646e76bb5daf4ca38438c69ffb72cccb605f3466 <c69718519a81e87284494d0c6e6eb7bdd834707a || >=646e76bb5daf4ca38438c69ffb72cccb605f3466 <e14bf37bb2b3853012ff160131d1c6233f7a9cc9a5c715eda066cba5ce3372759188ba8636dca629, 73f48f7e16cadfc74f444ccd10c1d3ae253e2e27, c69718519a81e87284494d0c6e6eb7bdd834707a, e14bf37bb2b3853012ff160131d1c6233f7a9cc9
Linux/Linuxgeneric4.7Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to a5c715eda066cba5ce3372759188ba8636dca629 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 6, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't allow injecting frames wider than the chanctx Frames injected on a monitor interface can carry a radiotap field requesting a bandwidth, which mac80211 passes down to the driver regardless of the the actual operational bandwidth. If the bandwidth requested is too wide, that triggers a warning in hwsim: WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)) Drop such frames entirely instead since they cannot be sent.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • wifi: cfg80211: get the wiphy out of a dying network namespaceSame linux/linux package
  • wifi: mac80211: unlist vifs when their netdev is unregisteredSame linux/linux package
  • wifi: mac80211: only operate on TDLS peers in the TDLS codeSame linux/linux package
  • wifi: mac80211: reset the LED state when ifup failsSame linux/linux package
  • wifi: mac80211: reset state when starting AP failsSame linux/linux package
  • wifi: mac80211: abort chanswitch when leaving a meshSame linux/linux package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 6, 2026
References
4 linked sources
Open source record