CVE-2024-27069 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: ovl: relax WARN_ON in ovl_verify_area() syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs. This type of use case is documented to cause undefined behavior, so returning EIO error for the copy up makes sense, but it should not be causing a WARN_ON assertion.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e
https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca
https://lore.kernel.org/linux-cve-announce/2024050133-CVE-2024-27069-5b70@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-27069
https://www.cve.org/CVERecord?id=CVE-2024-27069

History

Thu, 18 Sep 2025 17:00:00 +0000

Type	Values Removed	Values Added
Weaknesses		NVD-CWE-noinfo
CPEs		cpe:2.3:o:linux:linux_kernel::::::::

Thu, 19 Dec 2024 09:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 12 Sep 2024 08:30:00 +0000

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-01T13:04:23.060Z

Updated: 2025-05-04T09:03:33.144Z

Reserved: 2024-02-19T14:20:24.216Z

Link: CVE-2024-27069

Vulnrichment

Updated: 2024-08-02T00:27:57.829Z

NVD

Status : Analyzed

Published: 2024-05-01T13:15:50.987

Modified: 2025-09-18T16:52:04.713

Link: CVE-2024-27069

Redhat

Severity : Moderate

Publid Date: 2024-05-01T00:00:00Z

Links: CVE-2024-27069 - Bugzilla

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-27069", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.216Z", "datePublished": "2024-05-01T13:04:23.060Z", "dateUpdated": "2025-05-04T09:03:33.144Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:03:33.144Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\novl: relax WARN_ON in ovl_verify_area()\n\nsyzbot hit an assertion in copy up data loop which looks like it is\nthe result of a lower file whose size is being changed underneath\noverlayfs.\n\nThis type of use case is documented to cause undefined behavior, so\nreturning EIO error for the copy up makes sense, but it should not be\ncausing a WARN_ON assertion."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/overlayfs/copy_up.c"], "versions": [{"version": "ca7ab482401cf0a7497dad05f4918dc64115538b", "lessThan": "c3c85aefc0da1e5074a06c682542a54ccc99bdca", "status": "affected", "versionType": "git"}, {"version": "ca7ab482401cf0a7497dad05f4918dc64115538b", "lessThan": "77a28aa476873048024ad56daf8f4f17d58ee48e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/overlayfs/copy_up.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.8.2", "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": "6.8", "versionEndExcluding": "6.8.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca"}, {"url": "https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e"}], "title": "ovl: relax WARN_ON in ovl_verify_area()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:27:57.829Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-27069", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:43:55.458583Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:32:55.086Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:27:57.829Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-27069", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:43:55.458583Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:13.486Z"}}], "cna": {"title": "ovl: relax WARN_ON in ovl_verify_area()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ca7ab482401cf0a7497dad05f4918dc64115538b", "lessThan": "c3c85aefc0da1e5074a06c682542a54ccc99bdca", "versionType": "git"}, {"status": "affected", "version": "ca7ab482401cf0a7497dad05f4918dc64115538b", "lessThan": "77a28aa476873048024ad56daf8f4f17d58ee48e", "versionType": "git"}], "programFiles": ["fs/overlayfs/copy_up.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"status": "unaffected", "version": "0", "lessThan": "6.8", "versionType": "semver"}, {"status": "unaffected", "version": "6.8.2", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/overlayfs/copy_up.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca"}, {"url": "https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e"}], "x_generator": {"engine": "bippy-5f407fcff5a0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\novl: relax WARN_ON in ovl_verify_area()\n\nsyzbot hit an assertion in copy up data loop which looks like it is\nthe result of a lower file whose size is being changed underneath\noverlayfs.\n\nThis type of use case is documented to cause undefined behavior, so\nreturning EIO error for the copy up makes sense, but it should not be\ncausing a WARN_ON assertion."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T08:53:46.624Z"}}}, "cveMetadata": {"cveId": "CVE-2024-27069", "state": "PUBLISHED", "dateUpdated": "2024-12-19T08:53:46.624Z", "dateReserved": "2024-02-19T14:20:24.216Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-01T13:04:23.060Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "543A75FF-25B8-4046-A514-1EA8EDD87AB1", "versionEndExcluding": "6.8.2", "versionStartIncluding": "6.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\novl: relax WARN_ON in ovl_verify_area()\n\nsyzbot hit an assertion in copy up data loop which looks like it is\nthe result of a lower file whose size is being changed underneath\noverlayfs.\n\nThis type of use case is documented to cause undefined behavior, so\nreturning EIO error for the copy up makes sense, but it should not be\ncausing a WARN_ON assertion."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ovl: relax WARN_ON en ovl_verify_area() syzbot alcanz\u00f3 una afirmaci\u00f3n en el bucle de copia de datos que parece ser el resultado de un archivo inferior cuyo tama\u00f1o se est\u00e1 cambiando debajo de overlayfs. Est\u00e1 documentado que este tipo de caso de uso causa un comportamiento indefinido, por lo que devolver un error EIO para la copia tiene sentido, pero no deber\u00eda causar una afirmaci\u00f3n WARN_ON."}], "id": "CVE-2024-27069", "lastModified": "2025-09-18T16:52:04.713", "metrics": {"cvssMetricV31": [{"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"}]}, "published": "2024-05-01T13:15:50.987", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}