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CVE-2026-93823: 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: drm/amdkfd: Let driver decide buffer size at AMDKFD_IOC_GET_DMABUF_INFO ioctl amdkfd driver needs allocate buffer to return bo metadata to user space. The buffer size is controlled by user currently. It is a potential security issue that hostile value (e.g. 2 GiB) lets any render-group user trigger order-MAX allocation/OOM in kernel context. This patch first finds bo metadata size. If the size is smaller than user provided value drive can safely allocate buffer in kernel space and copy to user space buffer. If not, driver will let user know, not allocate and copy. User will redo with new buffer in user space. This patch lets driver decide buffer allocation size to avoid potential hostile size from user space. (cherry picked from commit f54ce9e8cbd3abe0eda3a285f54dc4f572fe589a)

    Засегнати продукти

    • Linux Linux: 1dde0ea95b782425b95455d487cb44991525a1d1 преди d298c100796b2cd1e7e75f8e615b79d034e510f8; 1dde0ea95b782425b95455d487cb44991525a1d1 преди d51841bb5ceee75ec3aeeb4e5c51c8e5e7524228; 1dde0ea95b782425b95455d487cb44991525a1d1 преди a65ccabde6deb95baf9442bd98299e2248884162; 1dde0ea95b782425b95455d487cb44991525a1d1 преди 2d9fd0f01550aab4a0a1984b4379e50545906248; 1dde0ea95b782425b95455d487cb44991525a1d1 преди 8242a8d9d7194d5ef8a8b38a5621ca0966a3ec15
    • Linux Linux: 5.0; преди 5.0; 6.1.191 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; от 7.2 нататък

    История

    • 24 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-93823: Linux | freedomonline.bg