CVE-2026-72282
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
In the Linux kernel, KVM's kvm_io_bus_get_dev() returns a device matched only by address, which can cause lifetime issues if the device is not of the expected type. The fix moves the srcu lock responsibility to the caller to avoid use-after-free.
Risk Assessment
Potential use-after-free could lead to kernel crash or security compromise, especially in virtualized environments.
Recommendation
Apply the Linux kernel update that moves the srcu lock responsibility to callers of kvm_io_bus_get_dev().
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: KVM: Move kvm_io_bus_get_dev() locking responsibilities to callers kvm_io_bus_get_dev() returns a device that is only matched by the address, and nothing else. This can cause a lifetime issue if the matched device is not the expected type, as by the time the caller can introspect the object, it might be gone (the srcu lock having been dropped). Given that there is only a single user of this helper, the simplest option is to move the locking responsibility to the caller, which can keep the srcu lock held for as long as it wants. Note that this aligns with other kvm_io_bus*() helpers, which already require the srcu lock to be held by the callers.