{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2022-48997",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nchar: tpm: Protect tpm_pm_suspend with locks\n\nCurrently tpm transactions are executed unconditionally in\ntpm_pm_suspend() function, which may lead to races with other tpm\naccessors in the system.\n\nSpecifically, the hw_random tpm driver makes use of tpm_get_random(),\nand this function is called in a loop from a kthread, which means it's\nnot frozen alongside userspace, and so can race with the work done\nduring system suspend:\n\n  tpm tpm0: tpm_transmit: tpm_recv: error -52\n  tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics\n  CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135\n  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014\n  Call Trace:\n   tpm_tis_status.cold+0x19/0x20\n   tpm_transmit+0x13b/0x390\n   tpm_transmit_cmd+0x20/0x80\n   tpm1_pm_suspend+0xa6/0x110\n   tpm_pm_suspend+0x53/0x80\n   __pnp_bus_suspend+0x35/0xe0\n   __device_suspend+0x10f/0x350\n\nFix this by calling tpm_try_get_ops(), which itself is a wrapper around\ntpm_chip_start(), but takes the appropriate mutex.\n\n[Jason: reworked commit message, added metadata]"
            }
        ]
    },
    "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": "e891db1a18bf",
                                            "version_value": "d699373ac5f3"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.1",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.1",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.226",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.158",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.82",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.0.12",
                                                        "lessThanOrEqual": "6.0.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.1",
                                                        "lessThanOrEqual": "*",
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                                                        "versionType": "original_commit_for_fix"
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    "references": {
        "reference_data": [
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                "url": "https://git.kernel.org/stable/c/d699373ac5f3545243d3c73a1ccab77fdef8cec6",
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                "name": "https://git.kernel.org/stable/c/d699373ac5f3545243d3c73a1ccab77fdef8cec6"
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                "name": "https://git.kernel.org/stable/c/4e0d6c687c925e27fd4bc78a2721d10acf5614d6"
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                "url": "https://git.kernel.org/stable/c/571b6bbbf54d835ea6120f65575cb55cd767e603",
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                "name": "https://git.kernel.org/stable/c/25b78bf98b07ff5aceb9b1e24f72ec0236c5c053"
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