Race Condition Affecting linux-virt package, versions <6.12.20-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRT-13330761
  • published6 Oct 2025
  • disclosed1 Apr 2025

Introduced: 1 Apr 2025

CVE-2025-21947  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Minimos:latest linux-virt to version 6.12.20-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-virt package and not the linux-virt package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix type confusion via race condition when using ipc_msg_send_request

req->handle is allocated using ksmbd_acquire_id(&ipc_ida), based on ida_alloc. req->handle from ksmbd_ipc_login_request and FSCTL_PIPE_TRANSCEIVE ioctl can be same and it could lead to type confusion between messages, resulting in access to unexpected parts of memory after an incorrect delivery. ksmbd check type of ipc response but missing add continue to check next ipc reponse.

CVSS Base Scores

version 3.1