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CVE-2026-98008: Linux

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CVSS

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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: net: macb: fix NULL pointer dereference on unbind with fixed-link When the device tree describes a fixed-link and has no "mdio" child node, macb_mii_init() returns early without allocating the MDIO bus, leaving bp->mii_bus as NULL. Two cleanup paths then dereference this NULL bus: 1. On driver unbind, macb_remove() unconditionally calls mdiobus_unregister(bp->mii_bus), which oopses: Unable to handle kernel NULL pointer dereference at virtual address 00000000000004a8 pc : mdiobus_unregister+0x14/0xa4 lr : macb_remove+0x38/0xa4 Call trace: mdiobus_unregister+0x14/0xa4 (P) macb_remove+0x38/0xa4 platform_remove+0x20/0x30 device_release_driver_internal+0x1c8/0x224 unbind_store+0xb4/0xbc 2. On the probe error path in macb_probe(), reached when macb_mii_init() has succeeded but a subsequent step fails, the err_out_unregister_mdio label runs the same unconditional cleanup. mdiobus_unregister() and mdiobus_free() do not guard against a NULL bus, so guard the calls in both macb_remove() and the probe error path.

    Засегнати продукти

    • Linux Linux: 831e19e565b5210930fa183730071f8290c61263 преди afa224cabc0132ca414b9141b1a919ca2d318cd0; 81db1e52848694761a1aa162ce76198af9964ed8 преди 054ad8e66025eb4778d840bef80c270646cebcd2; d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 преди f737d999fcb8f276d77b01ea4c2016ee01dad19b; d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 преди 5710f6a74f63cbba0e15cd75917234916181c9d4; d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 преди edb39c7666bb3924da761dfb417db85c1e5d8ad3; d0c3601f2c4e12e7689b0f46ebc17525250ea8c3 преди 38b6be101006d3e7af972999f45d4f1e8250587a; cafa5942bd2df3d80e3eeb2deb4bc050f7761f3d; c81dcaa9cd0b66816c2ecb6c5df0b6afde9c7da5; 19088c5378c9fea54e552d8bc7418a3aa1e06990; 6.1.114 преди 6.1.189; 6.6.58 преди 6.6.158; 5.10.228 преди 5.11; 5.15.169 преди 5.16; 6.11.5 преди 6.12
    • Linux Linux: 6.12; преди 6.12; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

    История

    • 25 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98008: Linux | freedomonline.bg