{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68461", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.395Z", "datePublished": "2026-08-15T05:51:21.219Z", "dateUpdated": "2026-08-17T05:39:08.142Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:39:08.142Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: initialize the remaining fields of fwnode_handle in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitialized memory which likely\nwill be neither NULL nor IS_ERR() and so may end up being dereferenced\n(for example: in dev_to_swnode()). Set fwnode->secondary to NULL on\ninitialization. While at it: initialize the remaining fields of struct\nfwnode_handle too just to be sure.\n\n[ Fix typo in commit message. - Danilo ]"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The flaw is in fwnode_init() in the driver-core firmware-node layer; uninitialized fwnode->secondary is consumed in dev_to_swnode() and fwnode_property_*() during local device probe, property lookups, and configfs-driven gpio-sim/gpio-virtuser software-node creation\u2014never from a network packet or remote protocol handler.\nAC:L - Once a fwnode_handle is placed in non-zeroed stack or kmalloc storage and passed through fwnode_init(), the uninitialized secondary pointer is deterministically non-NULL and non-IS_ERR(), and property helpers immediately pass it to fwnode_call_*_op() without further validation\u2014no race, heap grooming, or victim timing is required.\nPR:L - No init-namespace root is required to reach the dereference paths: fwnode_property_present() and dev_to_swnode() run during automatic driver probe/bind and consumer property resolution (GPIO/IIO/reset/v4l2-fwnode) that a local unprivileged user can trigger by opening device nodes or causing driver binding on embedded/Android systems using software nodes.\nUI:N - The garbage secondary pointer is dereferenced automatically inside kernel property lookups and dev_to_swnode() during probe or device registration; no separate victim action such as mounting media, clicking a prompt, or opening a malicious file is needed beyond the affected driver path executing.\nS:U - Impact is confined to kernel memory corruption and crashes within the host kernel's own security authority during firmware-node property handling; it does not cross VM, IOMMU, container, or sandbox boundaries.\nC:H - An uninitialized secondary is treated as a live fwnode_handle pointer; fwnode_call_bool_op()/fwnode_call_int_op() evaluate fwnode->ops on attacker-influenced stack or slab residue, reading kernel memory through misinterpreted ops tables rather than a bounded disclosure.\nI:H - The same garbage secondary is passed into fwnode_call_*_op() and set_secondary_fwnode()/fwnode_is_primary() logic; a non-NULL, non-ERR value with plausible ops and list-head residue enables indirect calls and list manipulation\u2014control-flow-relevant memory corruption per CNA guidance for uninitialized pointer use in fwnode plumbing.\nA:H - Dereferencing an uninitialized secondary in dev_to_swnode() or fwnode_property_*() causes an immediate kernel oops/panic from a bad pointer or invalid ops dispatch; the fault is repeatable whenever the affected fwnode initialization path is exercised."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/fwnode.h"], "versions": [{"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "0198d579948322cda5178b9672d448375a32f947", "status": "affected", "versionType": "git"}, {"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "173b61c9276c7b3a5fbcc63ae7aafc897fee1e18", "status": "affected", "versionType": "git"}, {"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "f0b4e1cc8ad76baf49d898727eb52e91a4ef0544", "status": "affected", "versionType": "git"}, {"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "c8542b68ba6ef4f61072098893a3f5b71c569b6c", "status": "affected", "versionType": "git"}, {"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "9c86a1f930bb2ddb85f867b4736716e82a4a4683", "status": "affected", "versionType": "git"}, {"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "c81e2af41de6a159837c7129a4fc444ac6e48046", "status": "affected", "versionType": "git"}, {"version": "01bb86b380a306bd937c96da36f66429f3362137", "lessThan": "7eba000621fff223dd7bab484d48918c7c77a307", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/fwnode.h"], "versions": [{"version": "5.11", "status": "affected"}, {"version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.96", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.11", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.12.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0198d579948322cda5178b9672d448375a32f947"}, {"url": "https://git.kernel.org/stable/c/173b61c9276c7b3a5fbcc63ae7aafc897fee1e18"}, {"url": "https://git.kernel.org/stable/c/f0b4e1cc8ad76baf49d898727eb52e91a4ef0544"}, {"url": "https://git.kernel.org/stable/c/c8542b68ba6ef4f61072098893a3f5b71c569b6c"}, {"url": "https://git.kernel.org/stable/c/9c86a1f930bb2ddb85f867b4736716e82a4a4683"}, {"url": "https://git.kernel.org/stable/c/c81e2af41de6a159837c7129a4fc444ac6e48046"}, {"url": "https://git.kernel.org/stable/c/7eba000621fff223dd7bab484d48918c7c77a307"}], "title": "device property: initialize the remaining fields of fwnode_handle in fwnode_init()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/linux/fwnode.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0198d579948322cda5178b9672d448375a32f947", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}, {"lessThan": "173b61c9276c7b3a5fbcc63ae7aafc897fee1e18", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}, {"lessThan": "f0b4e1cc8ad76baf49d898727eb52e91a4ef0544", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}, {"lessThan": "c8542b68ba6ef4f61072098893a3f5b71c569b6c", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}, {"lessThan": "9c86a1f930bb2ddb85f867b4736716e82a4a4683", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}, {"lessThan": "c81e2af41de6a159837c7129a4fc444ac6e48046", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}, {"lessThan": "7eba000621fff223dd7bab484d48918c7c77a307", "status": "affected", "version": "01bb86b380a306bd937c96da36f66429f3362137", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/linux/fwnode.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.11"}, {"lessThan": "5.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.96", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.39", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndevice property: initialize the remaining fields of fwnode_handle in fwnode_init()\n\nIf a firmware node is allocated on the stack (for instance: temporary\nsoftware node whose life-time we control) or on the heap - but using a\nnon-zeroing allocation function - and initialized using fwnode_init(),\nits secondary pointer will contain uninitialized memory which likely\nwill be neither NULL nor IS_ERR() and so may end up being dereferenced\n(for example: in dev_to_swnode()). Set fwnode->secondary to NULL on\ninitialization. While at it: initialize the remaining fields of struct\nfwnode_handle too just to be sure.\n\n[ Fix typo in commit message. - Danilo ]"}], "id": "CVE-2026-68461", "lastModified": "2026-08-17T06:17:55.380", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-15T06:18:34.113", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0198d579948322cda5178b9672d448375a32f947"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/173b61c9276c7b3a5fbcc63ae7aafc897fee1e18"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7eba000621fff223dd7bab484d48918c7c77a307"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9c86a1f930bb2ddb85f867b4736716e82a4a4683"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c81e2af41de6a159837c7129a4fc444ac6e48046"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8542b68ba6ef4f61072098893a3f5b71c569b6c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0b4e1cc8ad76baf49d898727eb52e91a4ef0544"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: device property: initialize the remaining fields of fwnode_handle in fwnode_init()", "id": "2516724", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516724"}, "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"}, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel. When a firmware node is allocated and initialized using `fwnode_init()`, a pointer within the `fwnode_handle` structure may contain uninitialized memory. This can occur if a non-zeroing allocation function is used. If this uninitialized pointer is subsequently dereferenced, it could lead to system instability or a denial of service (DoS)."], "name": "CVE-2026-68461", "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": "Out of support scope", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68461\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68461\nhttps://lore.kernel.org/linux-cve-announce/2026081503-CVE-2026-68461-a9a4@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,0198d579948322cda5178b9672d448375a32f947)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,173b61c9276c7b3a5fbcc63ae7aafc897fee1e18)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,f0b4e1cc8ad76baf49d898727eb52e91a4ef0544)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,c8542b68ba6ef4f61072098893a3f5b71c569b6c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,9c86a1f930bb2ddb85f867b4736716e82a4a4683)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,c81e2af41de6a159837c7129a4fc444ac6e48046)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[01bb86b380a306bd937c96da36f66429f3362137,7eba000621fff223dd7bab484d48918c7c77a307)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.96,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1, *]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T07:45:04.538664+00:00", "updated": "2026-08-18T05:30:08.331000+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}