{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-46924",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: st21nfca: Fix memory leak in device probe and remove\n\n'phy->pending_skb' is alloced when device probe, but forgot to free\nin the error handling path and remove path, this cause memory leak\nas follows:\n\nunreferenced object 0xffff88800bc06800 (size 512):\n  comm \"8\", pid 11775, jiffies 4295159829 (age 9.032s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450\n    [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0\n    [<000000005fea522c>] __alloc_skb+0x124/0x380\n    [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2\n\nFix it by freeing 'pending_skb' in error and remove."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
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                    "vendor_name": "Linux",
                    "product": {
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                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
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                                            "version_affected": "<",
                                            "version_name": "68957303f44a",
                                            "version_value": "38c3e320e7ff"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "3.16",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "3.16",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.14.261",
                                                        "lessThanOrEqual": "4.14.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.19.224",
                                                        "lessThanOrEqual": "4.19.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.170",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.90",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
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                                                    {
                                                        "version": "5.15.13",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
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                                                        "version": "5.16",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
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                                                "defaultStatus": "affected"
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        "reference_data": [
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                "url": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d"
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                "name": "https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349"
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