CVE-2024-35879

{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-35879", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-17T13:50:33.111Z", "datePublished": "2024-05-19T08:34:36.450Z", "dateUpdated": "2026-08-05T11:30:36.996Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:30:36.996Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: dynamic: Synchronize of_changeset_destroy() with the devlink removals\n\nIn the following sequence:\n 1) of_platform_depopulate()\n 2) of_overlay_remove()\n\nDuring the step 1, devices are destroyed and devlinks are removed.\nDuring the step 2, OF nodes are destroyed but\n__of_changeset_entry_destroy() can raise warnings related to missing\nof_node_put():\n ERROR: memory leak, expected refcount 1 instead of 2 ...\n\nIndeed, during the devlink removals performed at step 1, the removal\nitself releasing the device (and the attached of_node) is done by a job\nqueued in a workqueue and so, it is done asynchronously with respect to\nfunction calls.\nWhen the warning is present, of_node_put() will be called but wrongly\ntoo late from the workqueue job.\n\nIn order to be sure that any ongoing devlink removals are done before\nthe of_node destruction, synchronize the of_changeset_destroy() with the\ndevlink removals."}], "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 vulnerable sequence is reached through local device-tree overlay teardown (driver unbind via sysfs, PCI/FPGA hot-unplug handling, DLPAR), not through any network or remote protocol input. No remote peer data reaches drivers/of/dynamic.c.\nAC:L - The devlink removal job is queued asynchronously and of_platform_depopulate() returns immediately before of_overlay_remove() runs, so the outstanding-reference condition occurs reliably (the reporter and testers hit it consistently), and the teardown can be repeated in a loop via unbind/rebind cycles.\nPR:L - No capability check guards the racy path; entry is device removal/unbind, which on embedded and hotplug-capable deployments is initiated by device events or low-privileged management paths rather than gated authentication. Choosing the higher-severity option where the privilege boundary is deployment-dependent.\nUI:N - The overlay teardown is initiated by the attacker's own action (unbind/hot-unplug) or by an autonomous device event; no separate victim needs to perform any operation.\nS:U - The corrupted objects (struct device_node, kobject refcounts, kernel heap) all live within the kernel's own security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - When a leaked child node's parent device_node has already been freed, of_node_release()'s %pOF print dereferences the freed parent and its freed full_name pointer, rendering reclaimed heap contents into the kernel log \u2014 a use-after-free read of attacker-influenceable memory.\nI:H - The same path performs kobject_get()/refcount_inc() on the freed parent object, writing into memory that can be reclaimed by an attacker-sprayed allocation during the asynchronous workqueue window, giving a use-after-free write primitive.\nA:H - Every affected teardown permanently leaks device_node memory plus its properties, and the resulting refcount-0 nodes left in fwnode link lists and dangling parent pointers produce refcount_t warnings and freed-memory dereferences that oops (and panic under panic_on_warn); repeated hot-unplug cycles drive unbounded memory exhaustion."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/of/dynamic.c"], "versions": [{"version": "d007150b4e15bfcb8d36cfd88a5645d42e44d383", "lessThan": "3127b2ee50c424a96eb3559fbb7b43cf0b111c7a", "status": "affected", "versionType": "git"}, {"version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "3ee2424107546d882e1ddd75333ca9c32879908c", "status": "affected", "versionType": "git"}, {"version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "7b6df050c45a1ea158fd50bc32a8e1447dd1e951", "status": "affected", 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"https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c"}, {"url": "https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951"}, {"url": "https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82"}, {"url": "https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c"}, {"url": "https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84"}], "title": "of: dynamic: Synchronize of_changeset_destroy() with the devlink removals", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-35879", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-20T15:13:02.160768Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:33:31.403Z"}}, 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No remote peer data reaches drivers/of/dynamic.c.\nAC:L - The devlink removal job is queued asynchronously and of_platform_depopulate() returns immediately before of_overlay_remove() runs, so the outstanding-reference condition occurs reliably (the reporter and testers hit it consistently), and the teardown can be repeated in a loop via unbind/rebind cycles.\nPR:L - No capability check guards the racy path; entry is device removal/unbind, which on embedded and hotplug-capable deployments is initiated by device events or low-privileged management paths rather than gated authentication. Choosing the higher-severity option where the privilege boundary is deployment-dependent.\nUI:N - The overlay teardown is initiated by the attacker's own action (unbind/hot-unplug) or by an autonomous device event; no separate victim needs to perform any operation.\nS:U - The corrupted objects (struct device_node, kobject refcounts, kernel heap) all live within the kernel's own security authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - When a leaked child node's parent device_node has already been freed, of_node_release()'s %pOF print dereferences the freed parent and its freed full_name pointer, rendering reclaimed heap contents into the kernel log \u2014 a use-after-free read of attacker-influenceable memory.\nI:H - The same path performs kobject_get()/refcount_inc() on the freed parent object, writing into memory that can be reclaimed by an attacker-sprayed allocation during the asynchronous workqueue window, giving a use-after-free write primitive.\nA:H - Every affected teardown permanently leaks device_node memory plus its properties, and the resulting refcount-0 nodes left in fwnode link lists and dangling parent pointers produce refcount_t warnings and freed-memory dereferences that oops (and panic under panic_on_warn); repeated hot-unplug cycles drive unbounded memory exhaustion."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d007150b4e15bfcb8d36cfd88a5645d42e44d383", "lessThan": "3127b2ee50c424a96eb3559fbb7b43cf0b111c7a", "versionType": "git"}, {"status": "affected", "version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "3ee2424107546d882e1ddd75333ca9c32879908c", "versionType": "git"}, {"status": "affected", "version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "7b6df050c45a1ea158fd50bc32a8e1447dd1e951", "versionType": "git"}, {"status": "affected", "version": 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"version": "0", "lessThan": "5.13", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.215", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.154", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.85", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.26", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.5", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/of/dynamic.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a"}, {"url": "https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c"}, {"url": "https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951"}, {"url": "https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82"}, {"url": "https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c"}, {"url": "https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: dynamic: Synchronize of_changeset_destroy() with the devlink removals\n\nIn the following sequence:\n 1) of_platform_depopulate()\n 2) of_overlay_remove()\n\nDuring the step 1, devices are destroyed and devlinks are removed.\nDuring the step 2, OF nodes are destroyed but\n__of_changeset_entry_destroy() can raise warnings related to missing\nof_node_put():\n ERROR: memory leak, expected refcount 1 instead of 2 ...\n\nIndeed, during the devlink removals performed at step 1, the removal\nitself releasing the device (and the attached of_node) is done by a job\nqueued in a workqueue and so, it is done asynchronously with respect to\nfunction calls.\nWhen the warning is present, of_node_put() will be called but wrongly\ntoo late from the workqueue job.\n\nIn order to be sure that any ongoing devlink removals are done before\nthe of_node destruction, synchronize the of_changeset_destroy() with the\ndevlink removals."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.215", "versionStartIncluding": "5.10.42"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.154", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.85", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", 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"negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: dynamic: Synchronize of_changeset_destroy() with the devlink removals\n\nIn the following sequence:\n 1) of_platform_depopulate()\n 2) of_overlay_remove()\n\nDuring the step 1, devices are destroyed and devlinks are removed.\nDuring the step 2, OF nodes are destroyed but\n__of_changeset_entry_destroy() can raise warnings related to missing\nof_node_put():\n ERROR: memory leak, expected refcount 1 instead of 2 ...\n\nIndeed, during the devlink removals performed at step 1, the removal\nitself releasing the device (and the attached of_node) is done by a job\nqueued in a workqueue and so, it is done asynchronously with respect to\nfunction calls.\nWhen the warning is present, of_node_put() will be called but wrongly\ntoo late from the workqueue job.\n\nIn order to be sure that any ongoing devlink removals are done before\nthe of_node destruction, synchronize the of_changeset_destroy() with the\ndevlink removals."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: of:dynamic: Sincronizar of_changeset_destroy() con las eliminaciones de devlink En la siguiente secuencia: 1) of_platform_depopulate() 2) of_overlay_remove() Durante el paso 1, los dispositivos se destruyen y los devlinks son remoto. Durante el paso 2, los nodos OF se destruyen, pero __of_changeset_entry_destroy() puede generar advertencias relacionadas con la falta de of_node_put(): ERROR: p\u00e9rdida de memoria, recuento esperado 1 en lugar de 2... De hecho, durante las eliminaciones de devlink realizadas en el paso 1, la eliminaci\u00f3n La liberaci\u00f3n del dispositivo (y el of_node adjunto) se realiza mediante un trabajo en cola en una cola de trabajo y, por lo tanto, se realiza de forma asincr\u00f3nica con respecto a las llamadas a funciones. Cuando la advertencia est\u00e1 presente, se llamar\u00e1 a of_node_put() pero err\u00f3neamente demasiado tarde desde el trabajo de la cola de trabajo. Para asegurarse de que cualquier eliminaci\u00f3n de devlink en curso se realice antes de la destrucci\u00f3n de of_node, sincronice of_changeset_destroy() con las eliminaciones de devlink."}], "id": "CVE-2024-35879", "lastModified": "2026-08-04T11:18:04.680", "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"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-35879", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-20T15:13:02.160768Z", "version": "2.0.3"}}]}, "published": "2024-05-19T09:15:09.173", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: of: dynamic: Synchronize of_changeset_destroy() with the devlink removals", "id": "2281716", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281716"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nof: dynamic: Synchronize of_changeset_destroy() with the devlink removals\nIn the following sequence:\n1) of_platform_depopulate()\n2) of_overlay_remove()\nDuring the step 1, devices are destroyed and devlinks are removed.\nDuring the step 2, OF nodes are destroyed but\n__of_changeset_entry_destroy() can raise warnings related to missing\nof_node_put():\nERROR: memory leak, expected refcount 1 instead of 2 ...\nIndeed, during the devlink removals performed at step 1, the removal\nitself releasing the device (and the attached of_node) is done by a job\nqueued in a workqueue and so, it is done asynchronously with respect to\nfunction calls.\nWhen the warning is present, of_node_put() will be called but wrongly\ntoo late from the workqueue job.\nIn order to be sure that any ongoing devlink removals are done before\nthe of_node destruction, synchronize the of_changeset_destroy() with the\ndevlink removals."], "name": "CVE-2024-35879", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35879\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35879\nhttps://lore.kernel.org/linux-cve-announce/2024051944-CVE-2024-35879-963b@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-12T22:15:50.379520+00:00", "updated": "2025-07-12T22:15:50.379575+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}