CVE-2025-22068

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

16/04/2025

Last modified:

01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ublk: make sure ubq->canceling is set when queue is frozen Now ublk driver depends on `ubq->canceling` for deciding if the request can be dispatched via uring_cmd & io_uring_cmd_complete_in_task(). Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd() and io_uring_cmd_done(). So set ubq->canceling when queue is frozen, this way makes sure that the flag can be observed from ublk_queue_rq() reliably, and avoids use-after-free on uring_cmd.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.23 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.13.11 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.14 (including)	6.14.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-22068

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools