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    CVE-2025-37849

    In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak the corresponding memory when the vCPU is destroyed but it can also lead to use-after-free if the redistributor device handling tries to walk into the vCPU. Add the missing cleanup to kvm_arch_vcpu_create(), ensuring that the vGIC vCPU structures are destroyed on error.

    Published:May 9, 2025
    Last Modified:Jul 30, 2026
    EPS:May 9, 2025
    EPSS Score:0.00244
    CVSS Score:8.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Attack Vector
    Network
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    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
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    Scope
    Unchanged
    Changed
    Confidentiality
    None
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    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High