Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/5761d003daa987ac81463f570713ce9c9dd204e5
- https://git.kernel.org/stable/c/64d1645f26aa49b5a86ba2fccd0bb6749ea725a6
- https://git.kernel.org/stable/c/963fb4b8e7d1ab07b4ae45bf15d41e667c88caca
- https://git.kernel.org/stable/c/e8f9fef362bab431d95371d3406bc720350290c3
- https://git.kernel.org/stable/c/fa812cfa81aa3d4a7b6ce8277979af57b3f79712
FAQ
What is CVE-2026-74531?
CVE-2026-74531 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync tas...
How severe is CVE-2026-74531?
CVE-2026-74531 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-74531?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.