Answer in brief
CVE-2026-98891 records a Unknown severity vulnerability in wifi: mac80211: validate deauth frame length before reason access. The current sources do not mark it as known exploited. The current feed maps 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.
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.
The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <51092dc769f021e9634474e1bd5a561da477fbdb || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <80d1a110e9096b5bf41497f6b151154084862385 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a78689e2beed200d4590318612c74ae25c9408cf || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7a5ef1fd654d0e90d59aa32c881789c8bcc4125a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9df64ad43e1f2c036667bba2bf385e9d7b3af564 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4a360c6e18dfa9d70006c7247a6a8cc8dfe0d60f || >=0 <5.10.271 || >=0 <5.15.222 || >=0 <6.1.189 || >=0 <6.6.158 || >=0 <6.12.111 || >=0 <6.18.53 | 51092dc769f021e9634474e1bd5a561da477fbdb, a6ed4c00ccdc15011a73daa2b38af9fc5a2c543e, 80d1a110e9096b5bf41497f6b151154084862385, a78689e2beed200d4590318612c74ae25c9408cf, 7a5ef1fd654d0e90d59aa32c881789c8bcc4125a, 9df64ad43e1f2c036667bba2bf385e9d7b3af564, 4a360c6e18dfa9d70006c7247a6a8cc8dfe0d60f, 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53 |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: validate deauth frame length before reason access ieee80211_rx_mgmt_deauth() reads the deauth reason code before checking that the fixed field is actually present in the received frame. Validate the deauth frame length first and only then read the reason code.
Quoted source text, attributed separately from HOL analysis.