Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt hci_conn lookup and field access must be covered by hdev lock in hci_le_remote_conn_param_req_evt, otherwise it's possible it is freed concurrently. Extend the hci_dev_lock critical section to cover all conn usage.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.17, < 6.1.168 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699cPatch
- https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20Patch
- https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81Patch
- https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19Patch
- https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09Patch
- https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42cPatch
FAQ
What is CVE-2026-43018?
CVE-2026-43018 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt hci_conn lookup and field access must be covered by hd...
How severe is CVE-2026-43018?
CVE-2026-43018 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-2026-43018?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.