CVE-2025-37885

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Source
https://cve.org/CVERecord?id=CVE-2025-37885
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37885.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-37885
Downstream
Related
Published
2025-05-09T06:45:48.150Z
Modified
2026-03-11T07:52:38.264772Z
Summary
KVM: x86: Reset IRTE to host control if *new* route isn't postable
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37885.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
efc644048ecde54f016011fe10110addd0de348f
Fixed
e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769
Fixed
116c7d35b8f72eac383b9fd371d7c1a8ffc2968b
Fixed
023816bd5fa46fab94d1e7917fe131b79ed1fb41
Fixed
3481fd96d801715942b6f69fe251133128156f30
Fixed
b5de7ac74f69603ad803c524b840bffd36368fc3
Fixed
3066ec21d1a33896125747f68638725f456308db
Fixed
9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-37885.json"