{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50569",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-22T13:20:23.760Z",
        "datePublished": "2025-10-22T13:23:25.810Z",
        "dateUpdated": "2026-05-11T19:21:57.507Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:21:57.507Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: Update ipcomp_scratches with NULL when freed\n\nCurrently if ipcomp_alloc_scratches() fails to allocate memory\nipcomp_scratches holds obsolete address. So when we try to free the\npercpu scratches using ipcomp_free_scratches() it tries to vfree non\nexistent vm area. Described below:\n\nstatic void * __percpu *ipcomp_alloc_scratches(void)\n{\n        ...\n        scratches = alloc_percpu(void *);\n        if (!scratches)\n                return NULL;\nipcomp_scratches does not know about this allocation failure.\nTherefore holding the old obsolete address.\n        ...\n}\n\nSo when we free,\n\nstatic void ipcomp_free_scratches(void)\n{\n        ...\n        scratches = ipcomp_scratches;\nAssigning obsolete address from ipcomp_scratches\n\n        if (!scratches)\n                return;\n\n        for_each_possible_cpu(i)\n               vfree(*per_cpu_ptr(scratches, i));\nTrying to free non existent page, causing warning: trying to vfree\nexistent vm area.\n        ...\n}\n\nFix this breakage by updating ipcomp_scrtches with NULL when scratches\nis freed"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/xfrm/xfrm_ipcomp.c"
                    ],
                    "versions": [
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                            "lessThan": "debca61df6bc2f65e020656c9c5b878d6b38d30f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "a39f456d62810c0efb43cead22f98d95b53e4b1a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
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                            "lessThan": "1e8abde895b3ac6a368cbdb372e8800c49e73a28",
                            "status": "affected",
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                        {
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                            "status": "affected",
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                            "lessThan": "be81c44242b20fc3bdcc73480ef8aaee56f5d0b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "03155680191ef0f004b1d6a5714c5b8cd271ab61",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "f3bdba4440d82e0da2b1bfc35d3836c8a8e00677",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "2c19945ce8095d065df550e7fe350cd5cc40c6e6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
                            "lessThan": "8a04d2fc700f717104bfb95b0f6694e448a4537f",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/xfrm/xfrm_ipcomp.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.331",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.296",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.262",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.220",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.150",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.75",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.17",
                            "lessThanOrEqual": "5.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.3",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
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                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.12",
                                    "versionEndExcluding": "4.9.331"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/debca61df6bc2f65e020656c9c5b878d6b38d30f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a39f456d62810c0efb43cead22f98d95b53e4b1a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1e8abde895b3ac6a368cbdb372e8800c49e73a28"
                },
                {
                    "url": "https://git.kernel.org/stable/c/18373ed500f7cd53e24d9b0bd0f1c09d78dba87e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/be81c44242b20fc3bdcc73480ef8aaee56f5d0b6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/03155680191ef0f004b1d6a5714c5b8cd271ab61"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f3bdba4440d82e0da2b1bfc35d3836c8a8e00677"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2c19945ce8095d065df550e7fe350cd5cc40c6e6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8a04d2fc700f717104bfb95b0f6694e448a4537f"
                }
            ],
            "title": "xfrm: Update ipcomp_scratches with NULL when freed",
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}