VDB

DEBIAN-CVE-2025-39861

DEBIAN-CVE-2025-39861 PUBLISHED CVSS 7.800000190734863 HIGH

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: vhci: Prevent use-after-free by removing debugfs files early Move the creation of debugfs files into a dedicated function, and ensure they are explicitly removed during vhci_release(), before associated data structures are freed. Previously, debugfs files such as "force_suspend", "force_wakeup", and others were created under hdev->debugfs but not removed in vhci_release(). Since vhci_release() frees the backing vhci_data structure, any access to these files after release would result in use-after-free errors. Although hdev->debugfs is later freed in hci_release_dev(), user can access files after vhci_data is freed but before hdev->debugfs is released.

Risk Scores

CVSS v3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:14linux6.12.57-1, 0, 6.12.43-1
Debian:13linux0, 6.12.38-1, 6.12.43-1

Timeline

  • Sep 19, 2025 CVE Published
  • Apr 28, 2026 CVE Updated
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