Bug 2293345 (CVE-2022-48764)
| Summary: | CVE-2022-48764 kernel: KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2} | ||
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| Product: | [Other] Security Response | Reporter: | Avinash Hanwate <ahanwate> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | dfreiber, drow, jburrell, rhel-process-autobot, vkumar, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 5.16.5 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) subsystem for x86 architectures. A local user with privileges to manage virtual machines can cause a Denial of Service (DoS) by repeatedly issuing CPU feature configuration requests after running a virtual machine. Because the kernel fails to properly release allocated memory upon successful requests, this issue creates a memory leak that can deplete host system resources.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2293307 | ||
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2} The Linux kernel CVE team has assigned CVE-2022-48764 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024062009-CVE-2022-48764-6de1@gregkh/T