CVE-2022-49982

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When pvr2_hdw_create returns back to pvr2_context_create,\nit calls pvr2_context_destroy to destroy context, but mp->hdw is NULL,\nwhich leads to that pvr2_hdw_destroy directly returns.\n\nFix this by adding v4l2_device_unregister to decrease the refcount of\nusb interface."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/usb/pvrusb2/pvrusb2-hdw.c"], "versions": [{"version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c", "lessThan": "2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d", "status": "affected", "versionType": "git"}, {"version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c", "lessThan": "ba7dd8a9686a61a34b3a7b922ce721378d4740d0", "status": "affected", "versionType": "git"}, {"version": "b72b7bf5cbb2ae77b3bf748456655fc284baf04c", "lessThan": "491762b3250fb06a0c97b5198656ea48359eaeed", "status": "affected", "versionType": "git"}, {"version": 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{}

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When pvr2_hdw_create returns back to pvr2_context_create,\nit calls pvr2_context_destroy to destroy context, but mp->hdw is NULL,\nwhich leads to that pvr2_hdw_destroy directly returns.\n\nFix this by adding v4l2_device_unregister to decrease the refcount of\nusb interface."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: pvrusb2: se corrige una fuga de memoria en pvr_probe. El c\u00f3digo de gesti\u00f3n de errores en pvr2_hdw_create olvida anular el registro del dispositivo v4l2. Cuando pvr2_hdw_create regresa a pvr2_context_create, llama a pvr2_context_destroy para destruir el contexto, pero mp->hdw es NULL, lo que provoca que pvr2_hdw_destroy regrese directamente. Para solucionar esto, agregue v4l2_device_unregister para reducir el recuento de referencias de la interfaz USB."}], "id": "CVE-2022-49982", "lastModified": "2026-06-17T05:19:40.607", "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": "2025-06-18T11:15:25.720", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: pvrusb2: fix memory leak in pvr_probe", "id": "2373644", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373644"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: pvrusb2: fix memory leak in pvr_probe\nThe error handling code in pvr2_hdw_create forgets to unregister the\nv4l2 device. When pvr2_hdw_create returns back to pvr2_context_create,\nit calls pvr2_context_destroy to destroy context, but mp->hdw is NULL,\nwhich leads to that pvr2_hdw_destroy directly returns.\nFix this by adding v4l2_device_unregister to decrease the refcount of\nusb interface."], "name": "CVE-2022-49982", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49982\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49982\nhttps://lore.kernel.org/linux-cve-announce/2025061821-CVE-2022-49982-cb7f@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-06-23T08:45:29.099856+00:00", "updated": "2025-06-23T08:45:29.099919+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}