CVE-2025-22068

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-22068

7.8 /10

CVSS v3 : HIGH

V3 Legend

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

I

n 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.

References
Link Resource
https://git.kernel.org/stable/c/5491400589e7572c2d2627ed6384302f7672aa1d Patch
https://git.kernel.org/stable/c/7e3497d7dacb5aee69dd9be842b778083cae0e75 Patch
https://git.kernel.org/stable/c/8741d0737921ec1c03cf59aebf4d01400c2b461a Patch
https://git.kernel.org/stable/c/9158359015f0eda00e521e35b7bc7ebce176aebf Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

06 May 2025, 16:40

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux
CWE CWE-416
References () https://git.kernel.org/stable/c/5491400589e7572c2d2627ed6384302f7672aa1d - () https://git.kernel.org/stable/c/5491400589e7572c2d2627ed6384302f7672aa1d - Patch
References () https://git.kernel.org/stable/c/7e3497d7dacb5aee69dd9be842b778083cae0e75 - () https://git.kernel.org/stable/c/7e3497d7dacb5aee69dd9be842b778083cae0e75 - Patch
References () https://git.kernel.org/stable/c/8741d0737921ec1c03cf59aebf4d01400c2b461a - () https://git.kernel.org/stable/c/8741d0737921ec1c03cf59aebf4d01400c2b461a - Patch
References () https://git.kernel.org/stable/c/9158359015f0eda00e521e35b7bc7ebce176aebf - () https://git.kernel.org/stable/c/9158359015f0eda00e521e35b7bc7ebce176aebf - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ublk: asegurar que `ubq->canceling` esté configurado cuando la cola esté congelada. Ahora, el controlador ublk depende de `ubq->canceling` para decidir si la solicitud puede enviarse mediante `uring_cmd` e `io_uring_cmd_complete_in_task()`. Una vez configurado `ubq->canceling`, el `uring_cmd` puede enviarse mediante `ublk_cancel_cmd()` e `io_uring_cmd_done()`. Por lo tanto, al configurar `ubq->canceling` cuando la cola esté congelada, se garantiza que el indicador se pueda observar desde `ublk_queue_rq()` de forma fiable y se evita el `use-after-free` en `uring_cmd`.
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8

16 Apr 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-04-16 15:16

Updated : 2025-10-01 17:15

NVD link : CVE-2025-22068

Mitre link : CVE-2025-22068

CVE.ORG link : CVE-2025-22068

JSON object : View

Products Affected

linux

CWE
CWE-416

Use After Free