Improper Locking Affecting linux-virt package, versions <6.12.27-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-LINUXVIRT-13961876
  • published14 Nov 2025
  • disclosed8 May 2025

Introduced: 8 May 2025

CVE-2025-37812  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade Minimos:latest linux-virt to version 6.12.27-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:

usb: cdns3: Fix deadlock when using NCM gadget

The cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit 58f2fcb3a845 ("usb: cdnsp: Fix deadlock issue during using NCM gadget").

Under PREEMPT_RT the deadlock can be readily triggered by heavy network traffic, for example using "iperf --bidir" over NCM ethernet link.

The deadlock occurs because the threaded interrupt handler gets preempted by a softirq, but both are protected by the same spinlock. Prevent deadlock by disabling softirq during threaded irq handler.

CVSS Base Scores

version 3.1