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CVE-2026-31749: 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: comedi: ni_atmio16d: Fix invalid clean-up after failed attach If the driver's COMEDI "attach" handler function (`atmio16d_attach()`) returns an error, the COMEDI core will call the driver's "detach" handler function (`atmio16d_detach()`) to clean up. This calls `reset_atmio16d()` unconditionally, but depending on where the error occurred in the attach handler, the device may not have been sufficiently initialized to call `reset_atmio16d()`. It uses `dev->iobase` as the I/O port base address and `dev->private` as the pointer to the COMEDI device's private data structure. `dev->iobase` may still be set to its initial value of 0, which would result in undesired writes to low I/O port addresses. `dev->private` may still be `NULL`, which would result in null pointer dereferences. Fix `atmio16d_detach()` by checking that `dev->private` is valid (non-null) before calling `reset_atmio16d()`. This implies that `dev->iobase` was set correctly since that is set up before `dev->private`.

    Засегнати продукти

    • Linux Linux: 2323b276308a5da5774b778f39c7fd94b2a3022a преди a01dd339ea6ac58b0967a50085622a6017351140; 2323b276308a5da5774b778f39c7fd94b2a3022a преди 933a2d6a95f9bfb203e562c9be1dd990c735535c; 2323b276308a5da5774b778f39c7fd94b2a3022a преди 5d8d88c8c0eec230de8f1f60e0920a4337939a88; 2323b276308a5da5774b778f39c7fd94b2a3022a преди f517646e008fe99ca1800601cd011b110f8684ae; 2323b276308a5da5774b778f39c7fd94b2a3022a преди 3848ae00b1642e2c98ff8cbfd2d3b38c6f53b5c3; 2323b276308a5da5774b778f39c7fd94b2a3022a преди 43c68a2c7cc35b7c2a83c285cb4ad3d472b8caa2; 2323b276308a5da5774b778f39c7fd94b2a3022a преди d07d97ca4f7fac467cdcf4a012690853958b7e89; 2323b276308a5da5774b778f39c7fd94b2a3022a преди 101ab946b79ad83b36d5cfd47de587492a80acf0
    • Linux Linux: 2.6.30; преди 2.6.30; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.168 до 6.1.*; 6.6.134 до 6.6.*; 6.12.81 до 6.12.*; 6.18.22 до 6.18.*; 6.19.12 до 6.19.*; от 7.0 нататък

    История

    • 1 май 2026 Публикувано

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    CVE-2026-31749: Linux | freedomonline.bg