{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2022-48645",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-25T13:44:28.316Z",
        "datePublished": "2024-04-28T13:00:11.615Z",
        "dateUpdated": "2024-09-11T17:33:10.975Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:10:46.708Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: enetc: deny offload of tc-based TSN features on VF interfaces\n\nTSN features on the ENETC (taprio, cbs, gate, police) are configured\nthrough a mix of command BD ring messages and port registers:\nenetc_port_rd(), enetc_port_wr().\n\nPort registers are a region of the ENETC memory map which are only\naccessible from the PCIe Physical Function. They are not accessible from\nthe Virtual Functions.\n\nMoreover, attempting to access these registers crashes the kernel:\n\n$ echo 1 > /sys/bus/pci/devices/0000\\:00\\:00.0/sriov_numvfs\npci 0000:00:01.0: [1957:ef00] type 00 class 0x020001\nfsl_enetc_vf 0000:00:01.0: Adding to iommu group 15\nfsl_enetc_vf 0000:00:01.0: enabling device (0000 -> 0002)\nfsl_enetc_vf 0000:00:01.0 eno0vf0: renamed from eth0\n$ tc qdisc replace dev eno0vf0 root taprio num_tc 8 map 0 1 2 3 4 5 6 7 \\\n\tqueues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 base-time 0 \\\n\tsched-entry S 0x7f 900000 sched-entry S 0x80 100000 flags 0x2\nUnable to handle kernel paging request at virtual address ffff800009551a08\nInternal error: Oops: 96000007 [#1] PREEMPT SMP\npc : enetc_setup_tc_taprio+0x170/0x47c\nlr : enetc_setup_tc_taprio+0x16c/0x47c\nCall trace:\n enetc_setup_tc_taprio+0x170/0x47c\n enetc_setup_tc+0x38/0x2dc\n taprio_change+0x43c/0x970\n taprio_init+0x188/0x1e0\n qdisc_create+0x114/0x470\n tc_modify_qdisc+0x1fc/0x6c0\n rtnetlink_rcv_msg+0x12c/0x390\n\nSplit enetc_setup_tc() into separate functions for the PF and for the\nVF drivers. Also remove enetc_qos.o from being included into\nenetc-vf.ko, since it serves absolutely no purpose there."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/freescale/enetc/Makefile",
                        "drivers/net/ethernet/freescale/enetc/enetc.c",
                        "drivers/net/ethernet/freescale/enetc/enetc.h",
                        "drivers/net/ethernet/freescale/enetc/enetc_pf.c",
                        "drivers/net/ethernet/freescale/enetc/enetc_vf.c"
                    ],
                    "versions": [
                        {
                            "version": "34c6adf1977b",
                            "lessThan": "510e703e4ed0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34c6adf1977b",
                            "lessThan": "23022b74b1a2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34c6adf1977b",
                            "lessThan": "5641c751fe2f",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/freescale/enetc/Makefile",
                        "drivers/net/ethernet/freescale/enetc/enetc.c",
                        "drivers/net/ethernet/freescale/enetc/enetc.h",
                        "drivers/net/ethernet/freescale/enetc/enetc_pf.c",
                        "drivers/net/ethernet/freescale/enetc/enetc_vf.c"
                    ],
                    "versions": [
                        {
                            "version": "5.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.5",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.71",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.19.12",
                            "lessThanOrEqual": "5.19.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/510e703e4ed0e011db860bc21228aff48fc9eea7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/23022b74b1a23bed044f6bc96cf92f6ca5f3e75f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5641c751fe2f92d3d9e8a8e03c1263ac8caa0b42"
                }
            ],
            "title": "net: enetc: deny offload of tc-based TSN features on VF interfaces",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T15:17:55.608Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/510e703e4ed0e011db860bc21228aff48fc9eea7",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/23022b74b1a23bed044f6bc96cf92f6ca5f3e75f",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/5641c751fe2f92d3d9e8a8e03c1263ac8caa0b42",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2022-48645",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-09-10T15:46:14.504061Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-11T17:33:10.975Z"
                }
            }
        ]
    }
}