CVE-2026-98459
- Source
- https://cve.org/CVERecord?id=CVE-2026-98459
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98459.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98459
- Downstream
- Published
- 2026-10-18T15:15:08Z
- Modified
- 2026-10-20T02:30:38Z
- Summary
- Bluetooth: ISO: balance the parent hold in hci_bind_bis()
- Details
-
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().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98459.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/03a91cdf6862fb351a74f035ad21e70112438552
- https://git.kernel.org/stable/c/4c94557dd02569efa6c1072a0439addaef9a5224
- https://git.kernel.org/stable/c/4e49206d9574a4c109480198e73aea34ad0ed7f6
- https://git.kernel.org/stable/c/bbcd723ee7a84bc868142fd57717af88e54e555a
- https://git.kernel.org/stable/c/ff28e6c67143c76ef50c3eac01f2fad411705f71
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98459.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98459
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced11dc486ed5d4626e6b92a23b67ed76cb6c48bfc9Fixedff28e6c67143c76ef50c3eac01f2fad411705f71
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedfa224d0c094a458e9ebf5ea9b1c696136b7af427Fixed03a91cdf6862fb351a74f035ad21e70112438552Fixed4e49206d9574a4c109480198e73aea34ad0ed7f6Fixedbbcd723ee7a84bc868142fd57717af88e54e555aFixed4c94557dd02569efa6c1072a0439addaef9a5224
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.67Fixed6.6.158
Affected versions
v6.*
Linux / Kernel
Package
- Name
- Kernel