{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49907",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-05-01T14:05:17.246Z",
        "datePublished": "2025-05-01T14:10:51.073Z",
        "dateUpdated": "2026-05-11T19:09:02.150Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:09:02.150Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mdio: fix undefined behavior in bit shift for __mdiobus_register\n\nShifting signed 32-bit value by 31 bits is undefined, so changing\nsignificant bit to unsigned. The UBSAN warning calltrace like below:\n\nUBSAN: shift-out-of-bounds in drivers/net/phy/mdio_bus.c:586:27\nleft shift of 1 by 31 places cannot be represented in type 'int'\nCall Trace:\n <TASK>\n dump_stack_lvl+0x7d/0xa5\n dump_stack+0x15/0x1b\n ubsan_epilogue+0xe/0x4e\n __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c\n __mdiobus_register+0x49d/0x4e0\n fixed_mdio_bus_init+0xd8/0x12d\n do_one_initcall+0x76/0x430\n kernel_init_freeable+0x3b3/0x422\n kernel_init+0x24/0x1e0\n ret_from_fork+0x1f/0x30\n </TASK>"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/phy/mdio_bus.c"
                    ],
                    "versions": [
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "7006176a3c863e3e353ce1b8a349ef5bb1b9320e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "a3fafc974be37319679f36dc4e7cca7db1e02973",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "4954b5359eb141499492fadfab891e28905509e2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "634f066d02bdb22a26da7deb0c7617ab1a65fc9d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "985a88bf0b27193522bba7856b1763f428cef19d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4fd5f812c23c7deee6425f4a318e85c317cd1d6c",
                            "lessThan": "40e4eb324c59e11fcb927aa46742d28aba6ecb8a",
                            "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/phy/mdio_bus.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.28",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.28",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.333",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.299",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.265",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.224",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.154",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.78",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.8",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.28",
                                    "versionEndExcluding": "4.9.333"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.28",
                                    "versionEndExcluding": "4.14.299"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.28",
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                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.28",
                                    "versionEndExcluding": "5.4.224"
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                                    "versionStartIncluding": "2.6.28",
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                                },
                                {
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                                    "versionStartIncluding": "2.6.28",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.28",
                                    "versionEndExcluding": "6.0.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.28",
                                    "versionEndExcluding": "6.1"
                                }
                            ]
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/20ed01a7b9af6e6a3c33761eebbb710ea6dd49b7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7006176a3c863e3e353ce1b8a349ef5bb1b9320e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a3fafc974be37319679f36dc4e7cca7db1e02973"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4954b5359eb141499492fadfab891e28905509e2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/634f066d02bdb22a26da7deb0c7617ab1a65fc9d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/985a88bf0b27193522bba7856b1763f428cef19d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6ce6f8f8f6316da6f92afe7490bc2f0b654d68e0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/40e4eb324c59e11fcb927aa46742d28aba6ecb8a"
                }
            ],
            "title": "net: mdio: fix undefined behavior in bit shift for __mdiobus_register",
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}