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CVE-2026-72484: 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: staging: most: video: avoid double free on video register failure comp_register_videodev() allocates a video_device with video_device_alloc() and releases it if video_register_device() fails. This can double free the video_device when __video_register_device() reaches device_register() and that call fails: video_register_device() -> __video_register_device() -> device_register() fails -> put_device(&vdev->dev) -> v4l2_device_release() -> vdev->release(vdev) -> video_device_release(vdev) comp_register_videodev() -> video_device_release(mdev->vdev) Use video_device_release_empty() while registering the device so that registration failure paths do not free mdev->vdev through vdev->release(). comp_register_videodev() then releases mdev->vdev exactly once on failure. Restore video_device_release() after successful registration so the registered device keeps its normal lifetime handling. This issue was found by a static analysis tool I am developing.

    Засегнати продукти

    • Linux Linux: eab231c0398a91fbd294672bfe9e0ff45b368246 преди 009d58b73500d0b49f6ae3833f8afcb0ebd9ddbb; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 430ad4ea06a0767fb44a08e2212ceb3a996607ee; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 46ea51f5b2ee1a3b40c05b7c750cbc5cabe94062; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 4928096212b78262dbbeab3b3abf2352278ce22d; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 80ed79787da3311f76b4d71d0ce7ab992a9e134d; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 43078449ad6236d839e4d707954d2e36b10a6706; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 7fc162453cfb7b8e93edb16287a84ba0130cac38; eab231c0398a91fbd294672bfe9e0ff45b368246 преди 7cb1c5b32a2bfde961fff8d5204526b609bcb30a
    • Linux Linux: 4.9; преди 4.9; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

    История

    • 15 август 2026 Публикувано

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    Първоизточници

    CVE-2026-72484: Linux | freedomonline.bg