Answer in brief
CVE-2026-98459 records a Unknown severity vulnerability in Bluetooth: ISO: balance the parent hold in hci_bind_bis(). 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 | >=11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9 <ff28e6c67143c76ef50c3eac01f2fad411705f71 || >=fa224d0c094a458e9ebf5ea9b1c696136b7af427 <03a91cdf6862fb351a74f035ad21e70112438552 || >=fa224d0c094a458e9ebf5ea9b1c696136b7af427 <4e49206d9574a4c109480198e73aea34ad0ed7f6 || >=fa224d0c094a458e9ebf5ea9b1c696136b7af427 <bbcd723ee7a84bc868142fd57717af88e54e555a || >=fa224d0c094a458e9ebf5ea9b1c696136b7af427 <4c94557dd02569efa6c1072a0439addaef9a5224 || >=6.6.67 <6.6.158 | ff28e6c67143c76ef50c3eac01f2fad411705f71, 03a91cdf6862fb351a74f035ad21e70112438552, 4e49206d9574a4c109480198e73aea34ad0ed7f6, bbcd723ee7a84bc868142fd57717af88e54e555a, 4c94557dd02569efa6c1072a0439addaef9a5224, 6.6.158 |
| Linux/Linuxgeneric | 6.8 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 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: Bluetooth: ISO: balance the parent hold in hci_bind_bis() hci_conn_link() takes a lifetime reference to its parent with hci_conn_get(), but only takes an operational hold on the child. hci_conn_unlink() later balances both a hold and a reference on the parent. The SCO and CIS paths pass a parent acquired from a connect helper, so it already has a hold. For an additional BIS, hci_bind_bis() obtains the parent from hci_conn_hash_lookup_big(), which returns a bare pointer. Unlinking the child then drops the parent's existing hold and can schedule it for disconnection while its socket is still using it. Take a hold on the parent before linking it and drop that hold if linking fails. A successful link transfers the hold to hci_conn_unlink().
Quoted source text, attributed separately from HOL analysis.