Answer in brief
CVE-2026-89524 records a Unknown severity vulnerability in wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets. 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.
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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=bdcd81707973cf8aa9305337166f8ee842a050d4 <e3619bed5da125713b29ac881dc66f5e06606f88 || >=bdcd81707973cf8aa9305337166f8ee842a050d4 <e1330d719c047c4d8190a16be034b29fc601a815 || >=bdcd81707973cf8aa9305337166f8ee842a050d4 <8eb73016fb3968cf2db3987a92764563a3af773a || >=bdcd81707973cf8aa9305337166f8ee842a050d4 <3bbd05723d15dd06f0560bcd94fbf9a91b5f5613 | e3619bed5da125713b29ac881dc66f5e06606f88, e1330d719c047c4d8190a16be034b29fc601a815, 8eb73016fb3968cf2db3987a92764563a3af773a, 3bbd05723d15dd06f0560bcd94fbf9a91b5f5613 |
| Linux/Linuxgeneric | 3.2 | Not reported |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets ath6kl_cfg80211_connect_event() subtracts fixed IE offsets from assoc_req_len (-= 4) and assoc_resp_len (-= 6), both u8, with no lower bound. The aggregate check recently added to ath6kl_wmi_connect_event_rx() bounds the declared lengths from above (their sum must fit the received event), but an assoc request/response shorter than its fixed offset still underflows here: the u8 wraps to ~250, and cfg80211_connect_result() / cfg80211_roamed() then treat that wrapped value as the IE length and copy that many bytes out of the small assoc_info buffer to user space via nl80211, disclosing adjacent slab memory. Clamp both lengths to their offsets before subtracting. Found by 0sec (https://0sec.ai) using automated source analysis; the missing lower bound is evident from source. Compile-tested.
Quoted source text, attributed separately from HOL analysis.