Tracker / CVE-2025-37885
CVE-2025-37885
High 8.8
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.
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 4.4 → 5.10.237 |
| linux | linux_kernel · 5.11 → 5.15.181 |
| linux | linux_kernel · 5.16 → 6.1.136 |
| linux | linux_kernel · 6.13 → 6.14.5 |
| linux | linux_kernel · 6.2 → 6.6.89 |
| linux | linux_kernel · 6.7 → 6.12.26 |
Analysis
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