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CVE-2026-98504: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: PCI: of_property: Omit bus properties without a subordinate bus A bridge (a device with a Type 1 header) may not have a secondary bus allocated (pdev->subordinate), e.g., if there are no available bus numbers or the bridge secondary/subordinate bus numbers are not writable. The dynamic OF helpers of_pci_prop_bus_range() and of_pci_prop_intr_map() dereference pdev->subordinate without checking it. When CONFIG_PCI_DYNAMIC_OF_NODES is enabled, this can cause a NULL pointer dereference and early boot hang. Generate 'bus-range' and 'interrupt-map' properties only when a subordinate bus exists. Keep the node and its remaining properties for bridges without one. The problem was latent since 407d1a51921e ("PCI: Create device tree node for bridge"), but wasn't reachable until 1f340724419e ("PCI: of: Create device tree PCI host bridge node"), which appeared in v6.15. Before 1f340724419e, of_pci_make_dev_node() returned early because the parent OF node was missing. [bhelgaas: move pdev->subordinate test to callees, commit log]

    Засегнати продукти

    • Linux Linux: 407d1a51921e9f28c1bcec647c2205925bd1fdab преди ccd32fa3489cbe86a0b281da4447b4c7eadb3518; 407d1a51921e9f28c1bcec647c2205925bd1fdab преди a6d97d10e49ae49026ae13af6c41634fce470a37; 407d1a51921e9f28c1bcec647c2205925bd1fdab преди 879c911f77b8a7862aa16079b04efc3fdc5d32ec; 407d1a51921e9f28c1bcec647c2205925bd1fdab преди aee774588abd78f75952fd34c3fa461bc46b62c2; 407d1a51921e9f28c1bcec647c2205925bd1fdab преди 8805840aad73df7146778be243a196d48b4f6430
    • Linux Linux: 6.6; преди 6.6; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

    История

    • 18 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98504: Linux | freedomonline.bg