CVE-2024-46739

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This\npointer is valid only for the secondary channels. Also, rescind callback\nis meant for primary channels only.\n\nFix NULL pointer dereference by retrieving the device_obj from the parent\nfor the primary channel."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: uio_hv_generic: Corrija la desreferencia del puntero NULL del kernel en hv_uio_rescind. Para los canales de bus de VM principales, el puntero primary_channel siempre es NULL. Este puntero solo es v\u00e1lido para los canales secundarios. Adem\u00e1s, la devoluci\u00f3n de llamada rescind est\u00e1 destinada solo para los canales principales. Corrija la desreferencia del puntero NULL recuperando el device_obj del padre para el canal principal."}], "id": "CVE-2024-46739", "lastModified": "2026-06-17T07:55:49.960", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-46739", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-29T14:50:50.219661Z", "version": "2.0.3"}}]}, "published": "2024-09-18T08:15:03.293", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1d8e020e51ab07e40f9dd00b52f1da7d96fec04c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2be373469be1774bbe03b0fa7e2854e65005b1cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3005091cd537ef8cdb7530dcb2ecfba8d2ef475c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d414b64ecf6fd717d7510ffb893c6f23acbf50e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/928e399e84f4e80307dce44e89415115c473275b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/de6946be9c8bc7d2279123433495af7c21011b99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f38f46da80a2ab7d1b2f8fcb444c916034a2dac4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fb1adbd7e50f3d2de56d0a2bb0700e2e819a329e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind", "id": "2313087", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313087"}, "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"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nuio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind\nFor primary VM Bus channels, primary_channel pointer is always NULL. This\npointer is valid only for the secondary channels. Also, rescind callback\nis meant for primary channels only.\nFix NULL pointer dereference by retrieving the device_obj from the parent\nfor the primary channel."], "name": "CVE-2024-46739", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46739\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46739\nhttps://lore.kernel.org/linux-cve-announce/2024091834-CVE-2024-46739-0aa7@gregkh/T"], "threat_severity": "Moderate"}

{}