CVE-2024-49966

In the Linux kernel, the following vulnerability has been resolved: ocfs2: cancel dqi_sync_work before freeing oinfo ocfs2_global_read_info() will initialize and schedule dqi_sync_work at the end, if error occurs after successfully reading global quota, it will trigger the following warning with CONFIG_DEBUG_OBJECTS_* enabled: ODEBUG: free active (active state 0) object: 00000000d8b0ce28 object type: timer_list hint: qsync_work_fn+0x0/0x16c This reports that there is an active delayed work when freeing oinfo in error handling, so cancel dqi_sync_work first. BTW, return status instead of -1 when .read_file_info fails.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0d707a33c84b371cb66120e198eed3374726ddd8	Patch
https://git.kernel.org/stable/c/14114d8148db07e7946fb06b56a50cfa425e26c7	Patch
https://git.kernel.org/stable/c/35fccce29feb3706f649726d410122dd81b92c18	Patch
https://git.kernel.org/stable/c/4173d1277c00baeedaaca76783e98b8fd0e3c08d	Patch
https://git.kernel.org/stable/c/89043e7ed63c7fc141e68ea5a79758ed24b6c699
https://git.kernel.org/stable/c/a4346c04d055bf7e184c18a73dbd23b6a9811118	Patch
https://git.kernel.org/stable/c/bbf41277df8b33fbedf4750a9300c147e8f104eb	Patch
https://git.kernel.org/stable/c/ef768020366f47d23f39c4f57bcb03af6d1e24b3	Patch
https://git.kernel.org/stable/c/fc5cc716dfbdc5fd5f373ff3b51358174cf88bfc

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2024-10-21 18:15

Updated : 2024-11-08 16:15

NVD link : CVE-2024-49966

Mitre link : CVE-2024-49966

CVE.ORG link : CVE-2024-49966

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

{"id": "CVE-2024-49966", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-10-21T18:15:17.683", "references": [{"url": "https://git.kernel.org/stable/c/0d707a33c84b371cb66120e198eed3374726ddd8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/14114d8148db07e7946fb06b56a50cfa425e26c7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/35fccce29feb3706f649726d410122dd81b92c18", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4173d1277c00baeedaaca76783e98b8fd0e3c08d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/89043e7ed63c7fc141e68ea5a79758ed24b6c699", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a4346c04d055bf7e184c18a73dbd23b6a9811118", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bbf41277df8b33fbedf4750a9300c147e8f104eb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ef768020366f47d23f39c4f57bcb03af6d1e24b3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fc5cc716dfbdc5fd5f373ff3b51358174cf88bfc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: cancel dqi_sync_work before freeing oinfo\n\nocfs2_global_read_info() will initialize and schedule dqi_sync_work at the\nend, if error occurs after successfully reading global quota, it will\ntrigger the following warning with CONFIG_DEBUG_OBJECTS_* enabled:\n\nODEBUG: free active (active state 0) object: 00000000d8b0ce28 object type: timer_list hint: qsync_work_fn+0x0/0x16c\n\nThis reports that there is an active delayed work when freeing oinfo in\nerror handling, so cancel dqi_sync_work first. BTW, return status instead\nof -1 when .read_file_info fails."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: cancelar dqi_sync_work antes de liberar oinfo ocfs2_global_read_info() inicializar\u00e1 y programar\u00e1 dqi_sync_work al final, si ocurre un error despu\u00e9s de leer exitosamente la cuota global, activar\u00e1 la siguiente advertencia con CONFIG_DEBUG_OBJECTS_* habilitado: ODEBUG: free active (active state 0) object: 00000000d8b0ce28 object type: timer_list hint: qsync_work_fn+0x0/0x16c Esto informa que hay un trabajo retrasado activo al liberar oinfo en el manejo de errores, as\u00ed que cancele dqi_sync_work primero. POR CIERTO, devuelva el estado en lugar de -1 cuando .read_file_info falle."}], "lastModified": "2024-11-08T16:15:38.823", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17207E3A-A658-4FC6-AFFC-DC9A24067D66", "versionEndExcluding": "5.10.227", "versionStartIncluding": "2.6.29"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4D51C05D-455B-4D8D-89E7-A58E140B864C", "versionEndExcluding": "5.15.168", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D01BD22E-ACD1-4618-9D01-6116570BE1EE", "versionEndExcluding": "6.1.113", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E90B9576-56C4-47BC-AAB0-C5B2D438F5D0", "versionEndExcluding": "6.6.55", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C16BCE0-FFA0-4599-BE0A-1FD65101C021", "versionEndExcluding": "6.10.14", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9", "versionEndExcluding": "6.11.3", "versionStartIncluding": "6.11"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}