CVE-2026-22982

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The felix_vsc9959.c frontend is unaffected as\nit uses the DSA framework which registers all ports.\n\nFix this by checking if the port pointer is valid before accessing it."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: mscc: ocelot: Corregir ca\u00edda al a\u00f1adir interfaz bajo un lag\n\nCommit 15faa1f67ab4 ('lan966x: Corregir ca\u00edda al a\u00f1adir interfaz bajo un lag') solucion\u00f3 un problema similar en el controlador lan966x causado por una desreferenciaci\u00f3n de puntero NULL. La funci\u00f3n ocelot_set_aggr_pgids() en el controlador ocelot tiene una l\u00f3gica similar y es susceptible a la misma ca\u00edda.\n\nEste problema afecta espec\u00edficamente al frontend ocelot_vsc7514.c, que deja los puertos no utilizados como punteros NULL. El frontend felix_vsc9959.c no se ve afectado ya que utiliza el framework DSA que registra todos los puertos.\n\nSolucione esto comprobando si el puntero del puerto es v\u00e1lido antes de acceder a \u00e9l."}], "id": "CVE-2026-22982", "lastModified": "2026-11-10T13:18:31.800", "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": "2026-01-23T16:15:54.223", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/03fb1708b7d1e76aecebf767ad059c319845039f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2985712dc76dfa670eb7fd607c09d4d48e5f5c6e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/34f3ff52cb9fa7dbf04f5c734fcc4cb6ed5d1a95"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8767f238b0e6c3d0b295ac6dce9fbe6a99bd1b9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b17818307446c5a8d925a39a792261dbfa930041"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f490af47bbee02441e356a1e0b86e3b3dd5120ff"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.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: net: mscc: ocelot: Fix crash when adding interface under a lag", "id": "2432393", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2432393"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2026-22982", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-01-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-22982\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-22982\nhttps://lore.kernel.org/linux-cve-announce/2026012348-CVE-2026-22982-b250@gregkh/T"]}

{"analysis": {"en": {"generated_at": "2026-04-18T18:55:28.391006+00:00", "value": {"mitigation_remediation": ["Apply a kernel update to a version that includes the fix to the ocelot driver.", "If an update cannot be performed immediately, avoid adding or reconfiguring network interfaces under a link aggregation group that relies on the ocelot driver until a fix is available.", "Reboot the system after removing any existing lag configuration that involves the ocelot driver to ensure no unstable kernel state remains until the patch is applied."], "summary": {"action": "Patch Now", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Affected systems are Linux kernel installations that include the ocelot network driver, specifically the ocelot_vsc7514.c frontend. The vulnerability applies to all Linux kernel versions covered by the provided CPEs \u2013 including the 6.19 release candidates 1 through 4. The felix_vsc9959.c frontend, which employs the DSA framework and registers all ports, is not affected.", "description_and_impact": "The vulnerability is a NULL pointer dereference that occurs when adding a network interface under a link aggregation group in the ocelot driver. When the driver attempts to access an unused port that is represented as a NULL pointer, the kernel crashes, causing a system reboot or loss of connectivity, which is effectively a denial of service for the affected system. The weakness is classified as CWE\u2011476.", "risk_and_exploitability": "The official CVSS score is 5.5, indicating medium severity, and the EPSS score is below 1%, suggesting low exploitable probability at this time. The vulnerability is not listed in the CISA KEV catalog. Based on the description, the likely attack vector is a local privileged user who can configure network interfaces, as the crash is triggered during the addition of an interface under a lag. There are no known publicly available exploit tools at the time of analysis."}}}}, "created": "2026-04-18T19:00:08.042316+00:00", "updated": "2026-04-18T19:00:08.042333+00:00", "vendors": []}