{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-47333",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T14:28:16.975Z",
        "datePublished": "2024-05-21T14:35:43.760Z",
        "dateUpdated": "2024-08-04T05:32:08.457Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:06:08.506Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: alcor_pci: fix null-ptr-deref when there is no PCI bridge\n\nThere is an issue with the ASPM(optional) capability checking function.\nA device might be attached to root complex directly, in this case,\nbus->self(bridge) will be NULL, thus priv->parent_pdev is NULL.\nSince alcor_pci_init_check_aspm(priv->parent_pdev) checks the PCI link's\nASPM capability and populate parent_cap_off, which will be used later by\nalcor_pci_aspm_ctrl() to dynamically turn on/off device, what we can do\nhere is to avoid checking the capability if we are on the root complex.\nThis will make pdev_cap_off 0 and alcor_pci_aspm_ctrl() will simply\nreturn when bring called, effectively disable ASPM for the device.\n\n[    1.246492] BUG: kernel NULL pointer dereference, address: 00000000000000c0\n[    1.248731] RIP: 0010:pci_read_config_byte+0x5/0x40\n[    1.253998] Call Trace:\n[    1.254131]  ? alcor_pci_find_cap_offset.isra.0+0x3a/0x100 [alcor_pci]\n[    1.254476]  alcor_pci_probe+0x169/0x2d5 [alcor_pci]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/misc/cardreader/alcor_pci.c"
                    ],
                    "versions": [
                        {
                            "version": "1da177e4c3f4",
                            "lessThan": "d2639ffdcad4",
                            "status": "affected",
                            "versionType": "git"
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                            "status": "affected",
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                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/misc/cardreader/alcor_pci.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4.134",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.52",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.12.19",
                            "lessThanOrEqual": "5.12.*",
                            "status": "unaffected",
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                        {
                            "version": "5.13.4",
                            "lessThanOrEqual": "5.13.*",
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                        {
                            "version": "5.14",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d2639ffdcad463b358b6bef8645ff81715daffcb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/58f69684ba03e5b0e0a3ae844a845280c0f06309"
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                },
                {
                    "url": "https://git.kernel.org/stable/c/09d154990ca82d14aed2b72796f6c8845e2e605d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3ce3e45cc333da707d4d6eb433574b990bcc26f5"
                }
            ],
            "title": "misc: alcor_pci: fix null-ptr-deref when there is no PCI bridge",
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                "title": "CVE Program Container",
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