{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53856", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-09T01:27:17.828Z", "datePublished": "2025-12-09T01:30:22.012Z", "dateUpdated": "2025-12-09T01:30:22.012Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-09T01:30:22.012Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: overlay: Call of_changeset_init() early\n\nWhen of_overlay_fdt_apply() fails, the changeset may be partially\napplied, and the caller is still expected to call of_overlay_remove() to\nclean up this partial state.\n\nHowever, of_overlay_apply() calls of_resolve_phandles() before\ninit_overlay_changeset(). Hence if the overlay fails to apply due to an\nunresolved symbol, the overlay_changeset.cset.entries list is still\nuninitialized, and cleanup will crash with a NULL-pointer dereference in\noverlay_removal_is_ok().\n\nFix this by moving the call to of_changeset_init() from\ninit_overlay_changeset() to of_overlay_fdt_apply(), where all other\nearly initialization is done."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/of/overlay.c"], "versions": [{"version": "f948d6d8b792bb90041edc12eac35faf83030994", "lessThan": "01bb96ad38089f5cc6de7746dac13437d35eb1dc", "status": "affected", "versionType": "git"}, {"version": "f948d6d8b792bb90041edc12eac35faf83030994", "lessThan": "3fb210cd521c9efcb211e9f5ce40fc907200bf13", "status": "affected", "versionType": "git"}, {"version": "f948d6d8b792bb90041edc12eac35faf83030994", "lessThan": "be86241bf5d1efd16d8a7231c13b33459c5d755d", "status": "affected", "versionType": "git"}, {"version": "f948d6d8b792bb90041edc12eac35faf83030994", "lessThan": "c403c81b577a67fe9ec6a2e89d143256487be50f", "status": "affected", "versionType": "git"}, {"version": "f948d6d8b792bb90041edc12eac35faf83030994", "lessThan": "a9515ff4fb142b690a0d2b58782b15903b990dba", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/of/overlay.c"], "versions": [{"version": "4.15", "status": "affected"}, {"version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.132", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.53", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.16", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.3", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6", "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": "4.15", "versionEndExcluding": "5.15.132"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.1.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.4.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.5.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/01bb96ad38089f5cc6de7746dac13437d35eb1dc"}, {"url": "https://git.kernel.org/stable/c/3fb210cd521c9efcb211e9f5ce40fc907200bf13"}, {"url": "https://git.kernel.org/stable/c/be86241bf5d1efd16d8a7231c13b33459c5d755d"}, {"url": "https://git.kernel.org/stable/c/c403c81b577a67fe9ec6a2e89d143256487be50f"}, {"url": "https://git.kernel.org/stable/c/a9515ff4fb142b690a0d2b58782b15903b990dba"}], "title": "of: overlay: Call of_changeset_init() early", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: overlay: Call of_changeset_init() early\n\nWhen of_overlay_fdt_apply() fails, the changeset may be partially\napplied, and the caller is still expected to call of_overlay_remove() to\nclean up this partial state.\n\nHowever, of_overlay_apply() calls of_resolve_phandles() before\ninit_overlay_changeset(). Hence if the overlay fails to apply due to an\nunresolved symbol, the overlay_changeset.cset.entries list is still\nuninitialized, and cleanup will crash with a NULL-pointer dereference in\noverlay_removal_is_ok().\n\nFix this by moving the call to of_changeset_init() from\ninit_overlay_changeset() to of_overlay_fdt_apply(), where all other\nearly initialization is done."}], "id": "CVE-2023-53856", "lastModified": "2025-12-09T18:37:13.640", "metrics": {}, "published": "2025-12-09T16:17:26.283", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/01bb96ad38089f5cc6de7746dac13437d35eb1dc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3fb210cd521c9efcb211e9f5ce40fc907200bf13"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a9515ff4fb142b690a0d2b58782b15903b990dba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be86241bf5d1efd16d8a7231c13b33459c5d755d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c403c81b577a67fe9ec6a2e89d143256487be50f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: of: overlay: Call of_changeset_init() early", "id": "2420314", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2420314"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nof: overlay: Call of_changeset_init() early\nWhen of_overlay_fdt_apply() fails, the changeset may be partially\napplied, and the caller is still expected to call of_overlay_remove() to\nclean up this partial state.\nHowever, of_overlay_apply() calls of_resolve_phandles() before\ninit_overlay_changeset(). Hence if the overlay fails to apply due to an\nunresolved symbol, the overlay_changeset.cset.entries list is still\nuninitialized, and cleanup will crash with a NULL-pointer dereference in\noverlay_removal_is_ok().\nFix this by moving the call to of_changeset_init() from\ninit_overlay_changeset() to of_overlay_fdt_apply(), where all other\nearly initialization is done."], "name": "CVE-2023-53856", "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": "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": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53856\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53856\nhttps://lore.kernel.org/linux-cve-announce/2025120903-CVE-2023-53856-ed42@gregkh/T"], "threat_severity": "Important"}

{}