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CVE-2026-89816: 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: drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used Commit 1c6ceeee6ebb ("drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits") fixed a very similar issue when the event was allocated by drm_atomic_helper_setup_commit() itself. However, if the event is allocated in prepare_signaling(), it will also be set to NULL in complete_signaling(), which prevents drm_crtc_commit from being put in __drm_atomic_helper_crtc_destroy_state(). Dropping the reference when the event is set to NULL at complete_signaling() fixes the leak. The leak can be reproduced by sending a signal to the thread using DRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic ioctl to block at drm_atomic_helper_wait_for_fences(). It happened both with amdgpu and vkms.

    Засегнати продукти

    • Linux Linux: 24835e442f289813aa568d142a755672a740503c преди c5517b71101f61a45144e3cf77a19626355272de; 24835e442f289813aa568d142a755672a740503c преди 866a04137dac7e82a3848851061ff7ed15c2847e; 24835e442f289813aa568d142a755672a740503c преди 6a6a7aae4681a20cd32789fea9a487aaafa0e7a3; 24835e442f289813aa568d142a755672a740503c преди e2f27b5ed9084feb7bae9ef2bc80de37c92280b1; 24835e442f289813aa568d142a755672a740503c преди ff73f5f43d032c3da3c534c517f661e8dfeb358a; 24835e442f289813aa568d142a755672a740503c преди 66b1b309886337745d395bbc158440ab196305ce; 24835e442f289813aa568d142a755672a740503c преди e6195b941fdc8d81fc431c9f25539cf6c6234b51; 24835e442f289813aa568d142a755672a740503c преди 4d4be202165e832d74849b4a68e289a2a377039c; c75fe7899538890109aad7bbf92b2f304389e825; 2a3241044b1c4ecc13f73b7158881881fb7534a1; 4.9.19 преди 4.10; 4.10.7 преди 4.11
    • Linux Linux: 4.11; преди 4.11; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък

    История

    • 16 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89816: Linux | freedomonline.bg