CVE-2026-43018

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 3.1

8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2026-05-01

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c
• https://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20
• https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
• https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19
• https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09

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