{ "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 — 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", "versionType": "git" }, { "version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "801c8b8ec5bfb3519566dff16a5ecd48302fca82", "status": "affected", "versionType": "git" }, { "version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "ae6d76e4f06c37a623e357e79d49b17411db6f5c", "status": "affected", "versionType": "git" }, { "version": "80dd33cf72d1ab4f0af303f1fa242c6d6c8d328f", "lessThan": "8917e7385346bd6584890ed362985c219fe6ae84", "status": "affected", "versionType": "git" }, { "version": "252c23915546863685ecc68cb3a39e7e80c6c9d4", "status": "affected", "versionType": "git" }, { "version": "5.10.42", "lessThan": "5.10.215", "status": "affected", "versionType": "semver" }, { "version": "5.12.9", "lessThan": "5.13", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/of/dynamic.c" ], "versions": [ { "version": "5.13", "status": "affected" }, { "version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.215", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.154", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.85", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.26", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.5", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "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": "5.10.42", "versionEndExcluding": "5.10.215" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "5.15.154" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.1.85" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.6.26" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.8.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12.9" } ] } ] } ], "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" } ], "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" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:21:49.046Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/3127b2ee50c424a96eb3559fbb7b43cf0b111c7a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/3ee2424107546d882e1ddd75333ca9c32879908c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/7b6df050c45a1ea158fd50bc32a8e1447dd1e951", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/801c8b8ec5bfb3519566dff16a5ecd48302fca82", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/ae6d76e4f06c37a623e357e79d49b17411db6f5c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/8917e7385346bd6584890ed362985c219fe6ae84", "tags": [ "x_transferred" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": [ "x_transferred" ] } ] } ] }, "dataVersion": "5.2" }