{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-46922",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: trusted: Fix TPM reservation for seal/unseal\n\nThe original patch 8c657a0590de (\"KEYS: trusted: Reserve TPM for seal\nand unseal operations\") was correct on the mailing list:\n\nhttps://lore.kernel.org/linux-integrity/20210128235621.127925-4-jarkko@kernel.org/\n\nBut somehow got rebased so that the tpm_try_get_ops() in\ntpm2_seal_trusted() got lost.  This causes an imbalanced put of the\nTPM ops and causes oopses on TIS based hardware.\n\nThis fix puts back the lost tpm_try_get_ops()"
            }
        ]
    },
    "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": [
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                                            "version_affected": "<",
                                            "version_name": "67118bb78d72",
                                            "version_value": "bf84ef2dd2cc"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "498b8fc1cdc1",
                                            "version_value": "39c8d760d44c"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "8c657a0590de",
                                            "version_value": "9d5171eab462"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.10.20",
                                            "version_value": "5.10.33"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "5.11.3",
                                            "version_value": "5.11.17"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4"
            },
            {
                "url": "https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999"
            },
            {
                "url": "https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20"
            }
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