VULNERABILITY

Red Hat: CVE-2024-42132: kernel: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX (Multiple Advisories)

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Red Hat: CVE-2024-42132: kernel: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
07/30/2024
Created
12/06/2024
Added
12/05/2024
Modified
03/10/2025

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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-42132
  • RHSA-2024:9315

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