CVE-2026-98459Bluetooth: ISO: balance the parent hold in hci_bind_bis()
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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().
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9 – < ff28e6c67143c76ef50c3eac01f2fad411705f71
- affected fa224d0c094a458e9ebf5ea9b1c696136b7af427 – < 03a91cdf6862fb351a74f035ad21e70112438552
- affected fa224d0c094a458e9ebf5ea9b1c696136b7af427 – < 4e49206d9574a4c109480198e73aea34ad0ed7f6
- affected fa224d0c094a458e9ebf5ea9b1c696136b7af427 – < bbcd723ee7a84bc868142fd57717af88e54e555a
- affected fa224d0c094a458e9ebf5ea9b1c696136b7af427 – < 4c94557dd02569efa6c1072a0439addaef9a5224
- affected 6.6.67 – < 6.6.158
- affected 6.8
- unaffected < 6.8
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.55 – ≤ 6.18.*
- unaffected 7.2.9 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/ff28e6c67143c76ef50c3eac01f2fad411705f71 (opens in a new tab)
- https://git.kernel.org/stable/c/03a91cdf6862fb351a74f035ad21e70112438552 (opens in a new tab)
- https://git.kernel.org/stable/c/4e49206d9574a4c109480198e73aea34ad0ed7f6 (opens in a new tab)
- https://git.kernel.org/stable/c/bbcd723ee7a84bc868142fd57717af88e54e555a (opens in a new tab)
- https://git.kernel.org/stable/c/4c94557dd02569efa6c1072a0439addaef9a5224 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-103699 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98459)Record last updated .