PT-2025-49384 · Linux+3 · Linux Kernel+3

CVE-2025-40283

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Published

2025-11-05

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Updated

2026-08-30

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A use-after-free issue exists in the Bluetooth component of the Linux kernel, specifically within the btusb disconnect() function. The issue occurs because data associated with a Bluetooth interface is freed by usb driver release interface(), and then subsequently accessed, leading to a slab-use-after-free read. The fix involves reordering the cleanup process to access the btusb data before it is freed.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Use After Free

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Weakness Enumeration

Related Identifiers

BDU:2026-10519
CVE-2025-40283
DLA-4404-1
ECHO-207D-73D4-7C8C
MGASA-2026-0017
MGASA-2026-0018
OPENSUSE-SU-2026:20145-1
SUSE-SU-2026:0278-1
SUSE-SU-2026:0281-1
SUSE-SU-2026:0293-1
SUSE-SU-2026:0315-1
SUSE-SU-2026:0316-1
SUSE-SU-2026:20207-1
SUSE-SU-2026:20220-1
SUSE-SU-2026:20228-1
SUSE-SU-2026:20477-1
SUSE-SU-2026:20498-1
SUSE-SU-2026:20564-1
SUSE-SU-2026:20845-1
SUSE-SU-2026:20876-1
USN-8029-1
USN-8029-2
USN-8029-3
USN-8030-1
USN-8048-1
USN-8095-1
USN-8095-2
USN-8095-3
USN-8095-4
USN-8095-5
USN-8096-1
USN-8096-2
USN-8096-3
USN-8096-4
USN-8096-5
USN-8100-1
USN-8116-1
USN-8125-1
USN-8126-1
USN-8141-1
USN-8163-1
USN-8163-2
USN-8165-1
USN-8243-1
USN-8261-1

Affected Products

Debian
Linuxmint
Linux Kernel
Ubuntu