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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-37885 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reset IRTE to host control if *new* route isn't postable Restore an IRTE back to host control (remapped or posted MSI mode) if the *new* GSI route prevents posting the IRQ directly to a vCPU, regardless of the GSI routing type. Updating the IRTE if and only if the new GSI is an MSI results in KVM leaving an IRTE posting to a vCPU. The dangling IRTE can result in interrupts being incorrectly delivered to the guest, and in the worst case scenario can result in use-after-free, e.g. if the VM is torn down, but the underlying host IRQ isn't freed.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/023816bd5fa46fab94d1e7917fe131b79ed1fb41 kernel.org Patch 
https://git.kernel.org/stable/c/116c7d35b8f72eac383b9fd371d7c1a8ffc2968b kernel.org Patch 
https://git.kernel.org/stable/c/3066ec21d1a33896125747f68638725f456308db kernel.org Patch 
https://git.kernel.org/stable/c/3481fd96d801715942b6f69fe251133128156f30 kernel.org Patch 
https://git.kernel.org/stable/c/9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2 kernel.org Patch 
https://git.kernel.org/stable/c/b5de7ac74f69603ad803c524b840bffd36368fc3 kernel.org Patch 
https://git.kernel.org/stable/c/e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html CVE Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html CVE Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-37885
NVD Published Date:
05/09/2025
NVD Last Modified:
11/12/2025
Source:
kernel.org