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CVE-2026-43018

Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt

CVSS 8.8 HIGHEPSS 0.3%
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/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699chttps://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20https://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81https://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19https://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09https://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c