{"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": "2025-12-23T13:30:04.165Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-23T13:30:04.165Z"}, "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": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "debca61df6bc2f65e020656c9c5b878d6b38d30f", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a39f456d62810c0efb43cead22f98d95b53e4b1a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1e8abde895b3ac6a368cbdb372e8800c49e73a28", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "18373ed500f7cd53e24d9b0bd0f1c09d78dba87e", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "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": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"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:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.14.296"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.19.262"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.4.220"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.150"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.19.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.0.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1"}]}]}], "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", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "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"}], "id": "CVE-2022-50569", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-10-22T14:15:41.780", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/03155680191ef0f004b1d6a5714c5b8cd271ab61"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/18373ed500f7cd53e24d9b0bd0f1c09d78dba87e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1e8abde895b3ac6a368cbdb372e8800c49e73a28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c19945ce8095d065df550e7fe350cd5cc40c6e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8a04d2fc700f717104bfb95b0f6694e448a4537f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a39f456d62810c0efb43cead22f98d95b53e4b1a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be81c44242b20fc3bdcc73480ef8aaee56f5d0b6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/debca61df6bc2f65e020656c9c5b878d6b38d30f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f3bdba4440d82e0da2b1bfc35d3836c8a8e00677"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: xfrm: Update ipcomp_scratches with NULL when freed", "id": "2405765", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2405765"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50569", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50569\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50569\nhttps://lore.kernel.org/linux-cve-announce/2025102207-CVE-2022-50569-fdd1@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-23T10:07:42.544257+00:00", "updated": "2025-10-23T10:07:42.544285+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}