Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2025-37906
CVE-2025-37906:
Linux Kernel vulnerability analysis and mitigation
Overview
A race condition vulnerability was discovered in the Linux kernel, identified as CVE-2025-37906, disclosed on May 20, 2025. The vulnerability affects the ublk (userspace block device) subsystem, specifically involving a race between iouringcmdcompleteintask and ublkcancel_cmd functions (NVD, RedHat).
Technical details
The vulnerability occurs when ublkcancelcmd() calls iouringcmddone() to complete uringcmd, while task work may have been scheduled via iouringcmdcompletein_task() for dispatching request. This race condition can trigger a kernel crash. The vulnerability has been assigned a CVSS v3.1 base score of 7.0 with vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (RedHat).
Impact
When successfully exploited, this vulnerability can lead to a kernel crash, potentially causing system instability and denial of service (NVD).
Mitigation and workarounds
The vulnerability has been fixed by preventing the cancellation of commands if the ublk block request has already started (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management