{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49675",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:21:30.438Z",
        "datePublished": "2025-02-26T02:24:07.395Z",
        "dateUpdated": "2026-05-11T19:04:31.296Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:04:31.296Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntick/nohz: unexport __init-annotated tick_nohz_full_setup()\n\nEXPORT_SYMBOL and __init is a bad combination because the .init.text\nsection is freed up after the initialization. Hence, modules cannot\nuse symbols annotated __init. The access to a freed symbol may end up\nwith kernel panic.\n\nmodpost used to detect it, but it had been broken for a decade.\n\nCommit 28438794aba4 (\"modpost: fix section mismatch check for exported\ninit/exit sections\") fixed it so modpost started to warn it again, then\nthis showed up:\n\n    MODPOST vmlinux.symvers\n  WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup()\n  The symbol tick_nohz_full_setup is exported and annotated __init\n  Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export.\n\nDrop the export because tick_nohz_full_setup() is only called from the\nbuilt-in code in kernel/sched/isolation.c."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/time/tick-sched.c"
                    ],
                    "versions": [
                        {
                            "version": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
                            "lessThan": "c4ff3ffe0138234774602152fe67e3a898c615c6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
                            "lessThan": "f4a80ec8c51d68be4b7a7830c510f75080c5e417",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
                            "lessThan": "ea32b27e2f8c58c92bff5ecba7fcf64b97707089",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ae9e557b5be2e285f48ee945d9c8faf75d4f6a66",
                            "lessThan": "2390095113e98fc52fffe35c5206d30d9efe3f78",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/time/tick-sched.c"
                    ],
                    "versions": [
                        {
                            "version": "5.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.128",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.52",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.9",
                            "lessThanOrEqual": "5.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19",
                            "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": "5.5",
                                    "versionEndExcluding": "5.10.128"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.5",
                                    "versionEndExcluding": "5.15.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.5",
                                    "versionEndExcluding": "5.18.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.5",
                                    "versionEndExcluding": "5.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c4ff3ffe0138234774602152fe67e3a898c615c6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f4a80ec8c51d68be4b7a7830c510f75080c5e417"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ea32b27e2f8c58c92bff5ecba7fcf64b97707089"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2390095113e98fc52fffe35c5206d30d9efe3f78"
                }
            ],
            "title": "tick/nohz: unexport __init-annotated tick_nohz_full_setup()",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}