CVE-2022-49644

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector() If drm_connector_init fails, intel_connector_free will be called to take care of proper free. So it is necessary to drop the refcount of port before intel_connector_free. (cherry picked from commit cea9ed611e85d36a05db52b6457bf584b7d969e2)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

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/505114dda5bbfd07f4ce9a2df5b7d8ef5f2a1218	Patch
https://git.kernel.org/stable/c/592f3bad00b7e2a95a6fb7a4f9e742c061c9c3c1	Patch
https://git.kernel.org/stable/c/72f231b9a88abcfac9f5ddaa1a0aacb3f9f87ba5	Patch
https://git.kernel.org/stable/c/85144df9ff4652816448369de76897c57cbb1b93	Patch
https://git.kernel.org/stable/c/a91522b4279bebb098106a19b91f82b9c3213be9	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::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc5::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc6::::::

History

No history.

Information

Published : 2025-02-26 07:01

Updated : 2025-10-01 20:17

NVD link : CVE-2022-49644

Mitre link : CVE-2022-49644

CVE.ORG link : CVE-2022-49644

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-Other

{"id": "CVE-2022-49644", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-02-26T07:01:39.567", "references": [{"url": "https://git.kernel.org/stable/c/505114dda5bbfd07f4ce9a2df5b7d8ef5f2a1218", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/592f3bad00b7e2a95a6fb7a4f9e742c061c9c3c1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/72f231b9a88abcfac9f5ddaa1a0aacb3f9f87ba5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/85144df9ff4652816448369de76897c57cbb1b93", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a91522b4279bebb098106a19b91f82b9c3213be9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()\n\nIf drm_connector_init fails, intel_connector_free will be called to take\ncare of proper free. So it is necessary to drop the refcount of port\nbefore intel_connector_free.\n\n(cherry picked from commit cea9ed611e85d36a05db52b6457bf584b7d969e2)"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/i915: se corrige una posible p\u00e9rdida de recuento de referencias en intel_dp_add_mst_connector(). Si drm_connector_init falla, se llamar\u00e1 a intel_connector_free para encargarse de la liberaci\u00f3n adecuada. Por lo tanto, es necesario eliminar el recuento de referencias del puerto antes de intel_connector_free. (seleccionado de el commit cea9ed611e85d36a05db52b6457bf584b7d969e2)"}], "lastModified": "2025-10-01T20:17:01.370", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B36FF6F3-0A74-4B80-ACC9-8284E4FA59EC", "versionEndExcluding": "5.4.207", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46CE9FE9-22E3-45CA-8B5F-190C2CAFC5CE", "versionEndExcluding": "5.10.132", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AF59CE2F-BA66-4BFD-83AB-4576F3D1B49A", "versionEndExcluding": "5.15.56", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "640221A7-96EE-4B48-8FE1-BA810131789B", "versionEndExcluding": "5.18.13", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8C30C2D-F82D-4D37-AB48-D76ABFBD5377"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2E9C0DB0-D349-489F-A3D6-B77214E93A8A"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A0DE3B7-0FFB-45AA-9BD6-19870CA7C6FD"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "00AE778B-BAEE-49EB-9F84-003B73D7862A"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}