CVE-2026-98736Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's Bluetooth subsystem. A race condition occurs during enhanced Synchronous Connection-Oriented (SCO) link setup due to missing locking when accessing parent connection structures. A local user or adjace…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 4.7
none → medium
A flaw was found in the Linux kernel's Bluetooth subsystem. A race condition occurs during enhanced Synchronous Connection-Oriented (SCO) link setup due to missing locking when accessing parent connection structures. A local user or adjacent attacker could exploit this timing window by concurrently disconnecting the link, causing a use-after-free condition. This flaw could lead to a Denial of Service (DoS) via a system crash or potentially arbitrary code execution.
kernel: Bluetooth: hci_conn: Lock parent access during enhanced SCO setup — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.
Affected:
No fix planned:
Not affected:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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