CVE-2024-42132

HIGH

Linux Kernel 6.5.12-6.6 - Use-After-Free in Bluetooth HCI Connection Handle Management

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX Syzbot hit warning in hci_conn_del() caused by freeing handle that was not allocated using ida allocator. This is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by hci_le_big_sync_established_evt(), which makes code think it's unset connection. Add same check for handle upper bound as in hci_conn_set_handle() to prevent warning.

Scores

CVSS v3 7.1
EPSS 0.0023
EPSS Percentile 13.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-763
Status published
Products (13)
Linux/Linux < 6.7
Linux/Linux 181a42edddf51d5d9697ecdf365d72ebeab5afb0 - 1cc18c2ab2e8c54c355ea7c0423a636e415a0c23
Linux/Linux 181a42edddf51d5d9697ecdf365d72ebeab5afb0 - d311036696fed778301d08a71a4bef737b86d8c5
Linux/Linux 6.10
Linux/Linux 6.5.12 - 6.6
Linux/Linux 6.6.2 - 6.6.39
Linux/Linux 6.6.39 - 6.6.*
Linux/Linux 6.7
Linux/Linux 6.9.9 - 6.9.*
Linux/Linux 84cb0143fb8a03bf941c7aaedd56c938c99dafad - 4970e48f83dbd21d2a6a7cdaaafc2a71f7f45dc4
... and 3 more
Published Jul 30, 2024
Tracked Since Feb 18, 2026