CVE-2025-40284

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: cancel mesh send timer when hdev removed mesh_send_done timer is not canceled when hdev is removed, which causes crash if the timer triggers after hdev is gone. Cancel the timer when MGMT removes the hdev, like other MGMT timers. Should fix the BUG: sporadically seen by BlueZ test bot (in "Mesh - Send cancel - 1" test). Log: ------ BUG: KASAN: slab-use-after-free in run_timer_softirq+0x76b/0x7d0 ... Freed by task 36: kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_save_free_info+0x3a/0x60 __kasan_slab_free+0x43/0x70 kfree+0x103/0x500 device_release+0x9a/0x210 kobject_put+0x100/0x1e0 vhci_release+0x18b/0x240 ------

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2927ff643607eddf4f03d10ef80fe10d977154aa
https://git.kernel.org/stable/c/55fb52ffdd62850d667ebed842815e072d3c9961
https://git.kernel.org/stable/c/7b6b6c077cad0601d62c3c34ab7ce3fb25deda7b
https://git.kernel.org/stable/c/990e6143b0ca0c66f099d67d00c112bf59b30d76
https://git.kernel.org/stable/c/fd62ca5ad136dcf6f5aa308423b299a6be6f54ea

Configurations

No configuration.

History

30 Jul 2026, 06:24

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8

06 Dec 2025, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-06 22:15

Updated : 2026-07-30 06:24

NVD link : CVE-2025-40284

Mitre link : CVE-2025-40284

CVE.ORG link : CVE-2025-40284

JSON object : View

Products Affected

No product.

CWE

No CWE.

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