CVE-2024-50174

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix race when converting group handle to group object XArray provides it's own internal lock which protects the internal array when entries are being simultaneously added and removed. However there is still a race between retrieving the pointer from the XArray and incrementing the reference count. To avoid this race simply hold the internal XArray lock when incrementing the reference count, this ensures there cannot be a racing call to xa_erase().

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/44742138d151c3a945460ae7beff8ae45ac0bf58	Patch
https://git.kernel.org/stable/c/8a585d553c11965332d7a2d74e79ef92a42bfc87	Patch
https://git.kernel.org/stable/c/cac075706f298948898b1f63e81709df42afa75d	Patch

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:6.12:rc1::::::

History

No history.

Information

Published : 2024-11-08 06:15

Updated : 2024-11-27 20:20

NVD link : CVE-2024-50174

Mitre link : CVE-2024-50174

CVE.ORG link : CVE-2024-50174

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

{"id": "CVE-2024-50174", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}]}, "published": "2024-11-08T06:15:14.923", "references": [{"url": "https://git.kernel.org/stable/c/44742138d151c3a945460ae7beff8ae45ac0bf58", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8a585d553c11965332d7a2d74e79ef92a42bfc87", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cac075706f298948898b1f63e81709df42afa75d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Fix race when converting group handle to group object\n\nXArray provides it's own internal lock which protects the internal array\nwhen entries are being simultaneously added and removed. However there\nis still a race between retrieving the pointer from the XArray and\nincrementing the reference count.\n\nTo avoid this race simply hold the internal XArray lock when\nincrementing the reference count, this ensures there cannot be a racing\ncall to xa_erase()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/panthor: Se corrige la ejecuci\u00f3n al convertir el identificador de grupo en un objeto de grupo XArray proporciona su propio bloqueo interno que protege la matriz interna cuando se agregan y eliminan entradas simult\u00e1neamente. Sin embargo, todav\u00eda hay una ejecuci\u00f3n entre recuperar el puntero de XArray e incrementar el recuento de referencias. Para evitar esta ejecuci\u00f3n, simplemente mantenga el bloqueo interno de XArray al incrementar el recuento de referencias, esto garantiza que no pueda haber una llamada de ejecuci\u00f3n a xa_erase()."}], "lastModified": "2024-11-27T20:20:53.467", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20A9A1A8-B921-4FB1-BC2B-00E240DE3643", "versionEndExcluding": "6.10.14", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9", "versionEndExcluding": "6.11.3", "versionStartIncluding": "6.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}