Answer in brief
CVE-2026-98709 records a Unknown severity vulnerability in wifi: mac80211: count only matching reservations in reserved switch. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <d31f655e44631891788ca67018ec5e1ed1c7de86 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <03525b632908b049f4d04cc8a71cdff2329589cf || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <5cc54a000960bc88f8c58940164dca0e601ab39c || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <437f3727b4fd715266c296435c116288f82666fd | d31f655e44631891788ca67018ec5e1ed1c7de86, 03525b632908b049f4d04cc8a71cdff2329589cf, 5cc54a000960bc88f8c58940164dca0e601ab39c, 437f3727b4fd715266c296435c116288f82666fd |
| Linux/Linuxgeneric | 3.17 | Not reported |
| Linux/Linuxgeneric | >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <4ae6ed5b6074df5f3da05fd74c40bb24c5c9b41d || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <d31f655e44631891788ca67018ec5e1ed1c7de86 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <03525b632908b049f4d04cc8a71cdff2329589cf || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <5cc54a000960bc88f8c58940164dca0e601ab39c || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <437f3727b4fd715266c296435c116288f82666fd | 4ae6ed5b6074df5f3da05fd74c40bb24c5c9b41d, d31f655e44631891788ca67018ec5e1ed1c7de86, 03525b632908b049f4d04cc8a71cdff2329589cf, 5cc54a000960bc88f8c58940164dca0e601ab39c, 437f3727b4fd715266c296435c116288f82666fd |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: count only matching reservations in reserved switch ieee80211_vif_use_reserved_switch() validates a replacement by counting assigned links on ctx->replace_ctx and treating reservations too broadly. A link can still be assigned to the old channel context while holding a reservation that belongs to a different replacement operation. That can make the current replacement appear complete too early. If another link finalizes first, the function can free the WILL_BE_REPLACED chanctx while the unmatched link and driver still use it, leading to a use-after-free in later beacon generation. Require an in-place reservation to point at the current replacement context, and require the reserved and assigned contexts to be the matching replacement pair, before counting or moving the link.
Quoted source text, attributed separately from HOL analysis.