{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68744", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:30:51.031Z", "datePublished": "2025-12-24T12:09:40.839Z", "dateUpdated": "2026-05-11T21:52:30.476Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:52:30.476Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Free special fields when update [lru_,]percpu_hash maps\n\nAs [lru_,]percpu_hash maps support BPF_KPTR_{REF,PERCPU}, missing\ncalls to 'bpf_obj_free_fields()' in 'pcpu_copy_value()' could cause the\nmemory referenced by BPF_KPTR_{REF,PERCPU} fields to be held until the\nmap gets freed.\n\nFix this by calling 'bpf_obj_free_fields()' after\n'copy_map_value[,_long]()' in 'pcpu_copy_value()'."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/hashtab.c"], "versions": [{"version": "65334e64a493c6a0976de7ad56bf8b7a9ff04b4a", "lessThan": "994d6303ed0b84cbc795bb5becf7ed6de40d3f3c", "status": "affected", "versionType": "git"}, {"version": "65334e64a493c6a0976de7ad56bf8b7a9ff04b4a", "lessThan": "3bf1378747e251571e0de15e7e0a6bf2919044e7", "status": "affected", "versionType": "git"}, {"version": "65334e64a493c6a0976de7ad56bf8b7a9ff04b4a", "lessThan": "96a5cb7072cabbac5c66ac9318242c3bdceebb68", "status": "affected", "versionType": "git"}, {"version": "65334e64a493c6a0976de7ad56bf8b7a9ff04b4a", "lessThan": "4a03d69cece145e4fb527464be29c3806aa3221e", "status": "affected", "versionType": "git"}, {"version": "65334e64a493c6a0976de7ad56bf8b7a9ff04b4a", "lessThan": "6af6e49a76c9af7d42eb923703e7648cb2bf401a", "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/bpf/hashtab.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.63", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.13", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "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": "6.4", "versionEndExcluding": "6.6.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.63"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.17.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/994d6303ed0b84cbc795bb5becf7ed6de40d3f3c"}, {"url": "https://git.kernel.org/stable/c/3bf1378747e251571e0de15e7e0a6bf2919044e7"}, {"url": "https://git.kernel.org/stable/c/96a5cb7072cabbac5c66ac9318242c3bdceebb68"}, {"url": "https://git.kernel.org/stable/c/4a03d69cece145e4fb527464be29c3806aa3221e"}, {"url": "https://git.kernel.org/stable/c/6af6e49a76c9af7d42eb923703e7648cb2bf401a"}], "title": "bpf: Free special fields when update [lru_,]percpu_hash maps", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Free special fields when update [lru_,]percpu_hash maps\n\nAs [lru_,]percpu_hash maps support BPF_KPTR_{REF,PERCPU}, missing\ncalls to 'bpf_obj_free_fields()' in 'pcpu_copy_value()' could cause the\nmemory referenced by BPF_KPTR_{REF,PERCPU} fields to be held until the\nmap gets freed.\n\nFix this by calling 'bpf_obj_free_fields()' after\n'copy_map_value[,_long]()' in 'pcpu_copy_value()'."}], "id": "CVE-2025-68744", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-12-24T13:16:29.343", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3bf1378747e251571e0de15e7e0a6bf2919044e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a03d69cece145e4fb527464be29c3806aa3221e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6af6e49a76c9af7d42eb923703e7648cb2bf401a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/96a5cb7072cabbac5c66ac9318242c3bdceebb68"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/994d6303ed0b84cbc795bb5becf7ed6de40d3f3c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: bpf: Free special fields when update [lru_,]percpu_hash maps", "id": "2425037", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2425037"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-68744", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68744\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68744\nhttps://lore.kernel.org/linux-cve-announce/2025122416-CVE-2025-68744-bf55@gregkh/T"], "threat_severity": "Low"}

{}