{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-47456",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T14:58:30.833Z",
        "datePublished": "2024-05-22T06:19:45.363Z",
        "dateUpdated": "2024-08-04T05:39:59.411Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:08:15.587Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing 'chan' again after\nreleasing 'dev' will cause UAF.\n\nFix this by releasing 'dev' later.\n\nThe following log reveals it:\n\n[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[   35.965513 ] Call Trace:\n[   35.965718 ]  dump_stack_lvl+0xa8/0xd1\n[   35.966028 ]  print_address_description+0x87/0x3b0\n[   35.966420 ]  kasan_report+0x172/0x1c0\n[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170\n[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20\n[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]\n[   35.968752 ]  pci_device_remove+0xa9/0x250"
                }
            ],
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/can/sja1000/peak_pci.c"
                    ],
                    "versions": [
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                            "version": "e6d9c80b7ca1",
                            "lessThan": "1c616528ba4a",
                            "status": "affected",
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                            "lessThan": "447d44cd2f67",
                            "status": "affected",
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                            "status": "affected",
                            "versionType": "git"
                        },
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                            "lessThan": "0e5afdc2315b",
                            "status": "affected",
                            "versionType": "git"
                        },
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                            "lessThan": "949fe9b35570",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
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                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/can/sja1000/peak_pci.c"
                    ],
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                            "version": "3.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.4",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "4.4.290",
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                        },
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                        },
                        {
                            "version": "4.14.253",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
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                        },
                        {
                            "version": "4.19.214",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
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                        },
                        {
                            "version": "5.4.156",
                            "lessThanOrEqual": "5.4.*",
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                        },
                        {
                            "version": "5.10.76",
                            "lessThanOrEqual": "5.10.*",
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                        {
                            "version": "5.14.15",
                            "lessThanOrEqual": "5.14.*",
                            "status": "unaffected",
                            "versionType": "custom"
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                        {
                            "version": "5.15",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38"
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                },
                {
                    "url": "https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98"
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            ],
            "title": "can: peak_pci: peak_pci_remove(): fix UAF",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
            }
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
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                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 8.4,
                            "attackVector": "LOCAL",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
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                                "role": "CISA Coordinator",
                                "options": [
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                                        "Exploitation": "none"
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                                        "Automatable": "no"
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                                    {
                                        "Technical Impact": "total"
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                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-05-22T14:47:53.013850Z"
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