Race Condition Affecting linux-qemu-6.12 package, versions <6.12.80-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-LINUXQEMU612-15992139
  • published12 Apr 2026
  • disclosed20 May 2025

Introduced: 20 May 2025

CVE-2025-37906  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Chainguard linux-qemu-6.12 to version 6.12.80-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-qemu-6.12 package and not the linux-qemu-6.12 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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

ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd

ublk_cancel_cmd() calls io_uring_cmd_done() to complete uring_cmd, but we may have scheduled task work via io_uring_cmd_complete_in_task() for dispatching request, then kernel crash can be triggered.

Fix it by not trying to canceling the command if ublk block request is started.

CVSS Base Scores

version 3.1