CVE-2026-43018
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Linux Kernel
PublishedMay 1, 2026
First seenMay 1, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.17 ≤ v < 6.1.168, 6.2 ≤ v < 6.6.134, 6.7 ≤ v < 6.12.81, 6.13 ≤ v < 6.18.22, 6.19 ≤ v < 6.19.12, 7.0 | 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12 |
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