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CVE-2026-93118: 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: usb: gadget: aspeed_udc: check endpoint DMA allocation ast_udc_probe() allocates a coherent DMA buffer used as the backing store for endpoint buffers. ast_udc_init_ep() derives per-endpoint buffer pointers from udc->ep0_buf, so a failed allocation is dereferenced during probe. Check the allocation before endpoint setup. The existing probe error path called ast_udc_remove(), which unregisters the gadget unconditionally and is not safe before usb_add_gadget_udc() succeeds. Add a local cleanup helper for probe failures so pre-registration failures only unwind the resources that were actually initialized. This was found by a local static analysis checker for unchecked allocator returns while scanning Linux 6.16. The change was checked by applying it to current mainline and by running checkpatch. I do not have access to Aspeed UDC hardware, so no runtime testing was performed.

    Засегнати продукти

    • Linux Linux: 055276c1320564b0192b3af323b8cc67f9b665e1 преди d7ae1a48e70e9c3451b7dc7bc3896c82884bc4df; 055276c1320564b0192b3af323b8cc67f9b665e1 преди 4aaad88f857498ed1294f061f0b25d27ae891c55; 055276c1320564b0192b3af323b8cc67f9b665e1 преди 6182e708e2e1f55521c8a01d7535630ecc2d7df9; 055276c1320564b0192b3af323b8cc67f9b665e1 преди ff6e88e29965bd06f640e59acdcf0bbf04a7f55c; 055276c1320564b0192b3af323b8cc67f9b665e1 преди 9e6f57107c1886052d4baaa047a2bc3d0e91be5d; 055276c1320564b0192b3af323b8cc67f9b665e1 преди 97cee53a94be3bd4fd8fbed6071bd2f32dad1ab1
    • Linux Linux: 6.0; преди 6.0; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

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    Първоизточници

    CVE-2026-93118: Linux | freedomonline.bg