{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2022-48727",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Avoid consuming a stale esr value when SError occur\n\nWhen any exception other than an IRQ occurs, the CPU updates the ESR_EL2\nregister with the exception syndrome. An SError may also become pending,\nand will be synchronised by KVM. KVM notes the exception type, and whether\nan SError was synchronised in exit_code.\n\nWhen an exception other than an IRQ occurs, fixup_guest_exit() updates\nvcpu->arch.fault.esr_el2 from the hardware register. When an SError was\nsynchronised, the vcpu esr value is used to determine if the exception\nwas due to an HVC. If so, ELR_EL2 is moved back one instruction. This\nis so that KVM can process the SError first, and re-execute the HVC if\nthe guest survives the SError.\n\nBut if an IRQ synchronises an SError, the vcpu's esr value is stale.\nIf the previous non-IRQ exception was an HVC, KVM will corrupt ELR_EL2,\ncausing an unrelated guest instruction to be executed twice.\n\nCheck ARM_EXCEPTION_CODE() before messing with ELR_EL2, IRQs don't\nupdate this register so don't need to check."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "defe21f49bc9",
                                            "version_value": "e1e852746997"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.11",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.11",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.22",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.16.8",
                                                        "lessThanOrEqual": "5.16.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.17",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/e1e852746997500f1873f60b954da5f02cc2dba3",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/e1e852746997500f1873f60b954da5f02cc2dba3"
            },
            {
                "url": "https://git.kernel.org/stable/c/57e2986c3b25092691a6e3d6ee9168caf8978932",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/57e2986c3b25092691a6e3d6ee9168caf8978932"
            },
            {
                "url": "https://git.kernel.org/stable/c/1c71dbc8a179d99dd9bb7e7fc1888db613cf85de",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/1c71dbc8a179d99dd9bb7e7fc1888db613cf85de"
            }
        ]
    },
    "generator": {
        "engine": "bippy-7d53e8ef8be4"
    }
}