CVE-2025-68306

Kernel panic via unchecked ISO interface release

Published Dec 16, 2025 · Updated Dec 16, 2025

NULL pointer dereference in the Linux kernel MediaTek btusb reset path allows local users to trigger a kernel panic. The btusb_mtk_release_iso_intf function passes a null ISO interface to usb_driver_release_interface when reset cleanup follows an abnormal card drop. Reachability requires a MediaTek USB Bluetooth ISO interface and the reset path; the resulting panic interrupts the host.

CVSS severity6.8
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel MediaTek btusb reset path allows local users to trigger a kernel panic. The btusb_mtk_release_iso_intf function passes a null ISO interface to usb_driver_release_interface when reset cleanup follows an abnormal card drop. Reachability requires a MediaTek USB Bluetooth ISO interface and the reset path; the resulting panic interrupts the host.

The record

CVE
CVE-2025-68306
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.11
  2. Affected versionversion=ceac1cb0259de682d78f5c784ef8e0b13022e9d9 <4015b979767125cf8a2233a145a3b3af78bfd8fb
  3. Affected versionversion=ceac1cb0259de682d78f5c784ef8e0b13022e9d9 <421e88a0d85782786b7a1764c75518b4845e07b3
  4. Affected versionversion=ceac1cb0259de682d78f5c784ef8e0b13022e9d9 <faae9f2ea8806f2499186448adbf94689b47b82b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.11; version=ceac1cb0259de682d78f5c784ef8e0b13022e9d9 <4015b979767125cf8a2233a145a3b3af78bfd8fb; version=ceac1cb0259de682d78f5c784ef8e0b13022e9d9 <421e88a0d85782786b7a1764c75518b4845e07b3; version=ceac1cb0259de682d78f5c784ef8e0b13022e9d9 <faae9f2ea8806f2499186448adbf94689b47b82b

Published CVSS scores

6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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