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CVE-2026-93068: Linux

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix DM I2C teardown race DM I2C adapters can remain visible to userspace while DM teardown is already in progress. A concurrent i2c-dev transfer may then enter amdgpu_dm_i2c_xfer() after the backing DM state has been torn down, leading to a NULL pointer dereference. Create a devres group around the DM I2C adapter lifetime and release it at the start of dm_hw_fini(), before HPD, IRQ, and DM state are torn down. This removes the I2C adapters first and waits for in-flight users to drain before the structures used by amdgpu_dm_i2c_xfer() disappear. This fixes a teardown ordering race seen during device removal: BUG: kernel NULL pointer dereference RIP: amdgpu_dm_i2c_xfer+0x122/0x1c0 [amdgpu] Call Trace: __i2c_transfer i2c_transfer i2cdev_ioctl_rdwr

    Засегнати продукти

    • Linux Linux: 5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3 преди 8ee385305e8902fa6fbfd66b5a112238292567b6; 5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3 преди 6970ec944567f109ac4240f9aea58158ee8a18cd; 5b3eca05cfb02ed0dbd7097c056fb08ce5f76fe3 преди e4ae30a12aa95942814957d8bc1ce7366a7107d7
    • Linux Linux: 6.18; преди 6.18; 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-2026-93068: Linux | freedomonline.bg