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CVE-2026-98329

wifi: mac80211: don't allow injecting frames wider than the chanctx

No known exploitation. EPSS puts it in the 7th percentile. Fixed versions are out.

CVSS —Not scoredEPSS percentile7th0.2% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix1 product4 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • LinuxAffected: ≥ 646e76bb5daf4ca38438c69ffb72cccb605f3466, < a5c715eda066cba5ce3372759188ba8636dca629Upgrade to: a5c715eda066cba5ce3372759188ba8636dca629Affected: ≥ 646e76bb5daf4ca38438c69ffb72cccb605f3466, < 73f48f7e16cadfc74f444ccd10c1d3ae253e2e27Upgrade to: 73f48f7e16cadfc74f444ccd10c1d3ae253e2e27Affected: ≥ 646e76bb5daf4ca38438c69ffb72cccb605f3466, < c69718519a81e87284494d0c6e6eb7bdd834707aUpgrade to: c69718519a81e87284494d0c6e6eb7bdd834707aAffected: ≥ 646e76bb5daf4ca38438c69ffb72cccb605f3466, < e14bf37bb2b3853012ff160131d1c6233f7a9cc9Upgrade to: e14bf37bb2b3853012ff160131d1c6233f7a9cc9Stated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

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.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS7th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.2% chance of exploitation activity in the next 30 days, which ranks it in the 7th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

2 events over 0 days, from the signal feeds we watch.

  1. Publishedrecord updated

Affected products

Sources

References in the record

And 1 more reference. See all after sign-in

In the news

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