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CVE-2026-98765: Linux

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: USB: gadget: dummy-hcd: Fix wait for outstanding request completions The dummy-hcd driver emulates synchronize_irq() by waiting until its private callback_usage counter drops to 0 (with the private lock not held). This counter is incremented whenever a gadget driver callback occurs (which requires the private lock to be dropped), but not when a request completion handler is called. This is an oversight. Request completion is triggered by timer interrupts (emulating device IRQs in a real UDC), and the interrupt handlers are supposed to have completed when the synchronize_irq() emulation routine returns -- they aren't supposed to be in the middle of a completion callback. If this happens it can lead to a gadget driver's unbind routine running before all outstanding request completions have finished, maybe even allowing the gadget driver's module to be unloaded while a completion handler is still running. Fix the oversight by incrementing the callback_usage value across request completion callbacks.

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    • Linux Linux: 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди 32721319e89a2be610b0518b88f0d188ce878063; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди 48ef54100ceffbd1a055f193873574c45f408eb5; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди d77cc7c0d739fb17413714c5c4914bd396502e20; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди 6849e51b89de5b6fc7447dc8e612b58df19c7dea; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди 7ce4dca0d53b1c3cb2b7e7bb2e42bf5db860caf2; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди 5298c96bf0068f3160969f7ddad81976d01a9b66; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди 3070806a7bc7bb36ed04a21022c09dafcc5619f4; 7dbd8f4cabd96db5a50513de9d83a8105a5ffc81 преди b263ff9b0fc5c1f371d65c4eb196b31263d039ff; 7b416b9dac6ede26d4ca0c1a88b448b543623ff3; 8590bc1da625dd4a589eac0fc3aa3cf4f400424d; a867d5b932ac4911d3f8a1e63505061b0c81f889; e84b4a008365b7edbd842a063ae28d040a98db25; e39b17143a5b5aac81f066d455e5d3a9877eb3ae; 4f8ae1fcb0dfbb72a7678f81bf01fb7fc85c6715; 3.2.97 преди 3.3; 3.16.52 преди 3.17; 4.1.46 преди 4.2; 4.4.92 преди 4.5; 4.9.55 преди 4.10; 4.13.6 преди 4.14
    • Linux Linux: 4.14; преди 4.14; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

    История

    • 18 октомври 2026 Публикувано

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    CVE-2026-98765: Linux | freedomonline.bg