CVE-2025-37885 (GCVE-0-2025-37885)
Vulnerability from cvelistv5
Published
2025-05-09 06:45
Modified
2026-10-15 21:52
Severity ?
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: efc644048ecde54f016011fe10110addd0de348f
Version: efc644048ecde54f016011fe10110addd0de348f
Version: efc644048ecde54f016011fe10110addd0de348f
Version: efc644048ecde54f016011fe10110addd0de348f
Version: efc644048ecde54f016011fe10110addd0de348f
Version: efc644048ecde54f016011fe10110addd0de348f
Version: efc644048ecde54f016011fe10110addd0de348f
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  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.