Out-of-bounds Write Affecting linux-virt package, versions <6.12.20-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRT-13319498
  • published6 Oct 2025
  • disclosed1 Apr 2025

Introduced: 1 Apr 2025

CVE-2025-21927  (opens in a new tab)
CWE-787  (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:

nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()

nvme_tcp_recv_pdu() doesn't check the validity of the header length. When header digests are enabled, a target might send a packet with an invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst() to access memory outside the allocated area and cause memory corruptions by overwriting it with the calculated digest.

Fix this by rejecting packets with an unexpected header length.

CVSS Base Scores

version 3.1