CVE-2024-27392

In the Linux kernel, the following vulnerability has been resolved: nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse() When nvme_identify_ns() fails, it frees the pointer to the struct nvme_id_ns before it returns. However, ns_update_nuse() calls kfree() for the pointer even when nvme_identify_ns() fails. This results in KASAN double-free, which was observed with blktests nvme/045 with proposed patches [1] on the kernel v6.8-rc7. Fix the double-free by skipping kfree() when nvme_identify_ns() 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/534f9dc7fe495b3f9cc84363898ac50c5a25fccb	Patch
https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3	Patch
https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb	Patch
https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3	Patch

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2024-05-01 13:15

Updated : 2024-12-26 20:32

NVD link : CVE-2024-27392

Mitre link : CVE-2024-27392

CVE.ORG link : CVE-2024-27392

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-415

Double Free

{"id": "CVE-2024-27392", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "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": "2024-05-01T13:15:51.793", "references": [{"url": "https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-415"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse()\n\nWhen nvme_identify_ns() fails, it frees the pointer to the struct\nnvme_id_ns before it returns. However, ns_update_nuse() calls kfree()\nfor the pointer even when nvme_identify_ns() fails. This results in\nKASAN double-free, which was observed with blktests nvme/045 with\nproposed patches [1] on the kernel v6.8-rc7. Fix the double-free by\nskipping kfree() when nvme_identify_ns() fails."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: nvme: host: corrige la doble liberaci\u00f3n de la estructura nvme_id_ns en ns_update_nuse() Cuando nvme_identify_ns() falla, libera el puntero a la estructura nvme_id_ns antes de que regrese. Sin embargo, ns_update_nuse() llama a kfree() para el puntero incluso cuando nvme_identify_ns() falla. Esto da como resultado KASAN double-free, que se observ\u00f3 con blktests nvme/045 con parches propuestos [1] en el kernel v6.8-rc7. Corrija el doble libre omitiendo kfree() cuando falla nvme_identify_ns()."}], "lastModified": "2024-12-26T20:32:43.923", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "543A75FF-25B8-4046-A514-1EA8EDD87AB1", "versionEndExcluding": "6.8.2", "versionStartIncluding": "6.8"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}