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CVE-2026-80780: 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: HID: pidff: fix OOB write when hid->inputs is empty hid_pidff_init_with_quirks() derives its input_dev from list_entry(hid->inputs.next, struct hid_input, list) without first checking that hid->inputs is non-empty. The list member of struct hid_input is at offset 0, so on an empty list list_entry() yields &hid->inputs itself and the following hidinput->input load reads an unrelated member of struct hid_device. dev is then a type-confused pointer, and force-feedback init writes through it: each set_bit(FF_*, dev->ffbit) stores 8 bytes at dev + 192, past the end of the object dev actually aliases, and input_ff_create() adds further writes of a heap pointer and two function pointers. Until hid-universal-pidff the only caller was hid_pidff_init() from usbhid, which runs under HID_CLAIMED_INPUT and therefore always has at least one hid_input. universal_pidff_probe() starts the device with HID_CONNECT_DEFAULT & ~HID_CONNECT_FF and then calls hid_pidff_init_with_quirks() directly whenever the descriptor carries a PID usage page, bypassing that gate. A report descriptor whose only application collection is on HID_UP_PID leaves hid->inputs empty while hid_connect() still succeeds through the hidraw claim, so probe reaches the unguarded list_entry(). The write happens in the USB probe path, on the hotplug workqueue, so plugging in a malicious device is enough to trigger it; no attacker software and no logged-in user are required. KASAN reports an 8-byte out-of-bounds write in hid_pidff_init_with_quirks() reached from universal_pidff_probe(). Check for an empty list before deriving dev and return -ENODEV, as the other HID force-feedback drivers already do. universal_pidff_probe() propagates the error and unwinds. Discovered by XBOW, triaged by Baul Lee <[email protected]>

    Засегнати продукти

    • Linux Linux: c1fde337b317f0a226de92803288741c30799eb0 преди 2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a; f45f26a6b3e7260c129c7c6bb0ace63aeb7b3868 преди ad9330f7e74a97842815a291a0d7389ed2f34504; f06bf8d94fffbb544b1cb5402c92e0a075f0d420 преди 4529c03c3da8f91392cd630453452f569973f4cd; f06bf8d94fffbb544b1cb5402c92e0a075f0d420 преди d416eeb7d016d82af67c149d884bc6a9323c4ac7; f06bf8d94fffbb544b1cb5402c92e0a075f0d420 преди 86b63adfa5e132beac4be72668fdf9128fe51d2e; f06bf8d94fffbb544b1cb5402c92e0a075f0d420 преди 67bb1074e3d2d12fa059a9cc707e89398a4e4704; af9f2471dfe5a48384f5b7f021a673fbc741465e; b797352954eee6dc084cfaed0659dea60adfb484; 6.6.88 преди 6.6.156; 6.12.24 преди 6.12.108; 6.13.12 преди 6.14; 6.14.3 преди 6.15
    • Linux Linux: 6.15; преди 6.15; 6.6.156 до 6.6.*; 6.12.108 до 6.12.*; 6.18.47 до 6.18.*; 7.1.11 до 7.1.*; 7.2.1 до 7.2.*; от 7.3 нататък

    История

    • 4 септември 2026 Публикувано

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    CVE-2026-80780: Linux | freedomonline.bg