CVE-2025-38128

Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands

MEDIUM
5.5
CVSS Score
Published: July 3, 2025 at 08:35 AM UTC
Updated: June 17, 2026 at 09:16 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands In 'mgmt_hci_cmd_sync()', check whether the size of parameters passed in 'struct mgmt_cp_hci_cmd_sync' matches the total size of the data (i.e. 'sizeof(struct mgmt_cp_hci_cmd_sync)' plus trailing bytes). Otherwise, large invalid 'params_len' will cause 'hci_cmd_sync_alloc()' to do 'skb_put_data()' from an area beyond the one actually passed to 'mgmt_hci_cmd_sync()'.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.15.36.13 ≤ v < 6.166.13827af4787e74e8df9e8e0677a69fbb15e0856d2f
Vendor states this is fixed in 03f1700b9b4d4f2fed3165370f3c23db76553178 (fixed)
Vendor states this is fixed in 9eeafd16d76a7642d12b3442a26c15cd345e12f7 (fixed)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.15.3 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/03f1700b9b4d4f2fed3165370f3c23db76553178
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9eeafd16d76a7642d12b3442a26c15cd345e12f7

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card