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CVE-2026-98343: 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: dmaengine: fix use-after-free in dma_chan_put() and dma_release_channel() When dma_device_put() drops the last reference on chan->device->ref, dma_device_release() runs and may free the dma_device along with its channels. dma_chan_put() then still reads chan->device->owner via dma_chan_to_owner() for the trailing module_put(). KASAN catches it: slab-use-after-free in dma_chan_put+0x3e6/0x4c0 Read of size 8 by task insmod/6319 Freed by task 6319: kfree+0x225/0x470 dma_chan_put+0x395/0x4c0 dmaengine_put+0xf8/0x160 Cache the module owner in dma_chan_put() before the put so the trailing module_put() does not need chan->device.

    Засегнати продукти

    • Linux Linux: 8ad342a863590b24ce77681b7e081363fb3333f7 преди b92c502595336a3cc5bb7a060170891366745a5d; 8ad342a863590b24ce77681b7e081363fb3333f7 преди 855187a88bdf762c46b6849307597e3e02bfc1d9; 8ad342a863590b24ce77681b7e081363fb3333f7 преди c9780b601438137494b407eb4301bb3de2587ac9; 8ad342a863590b24ce77681b7e081363fb3333f7 преди 07eb075b60d565a5e465a1945a80cc62807492ad; 8ad342a863590b24ce77681b7e081363fb3333f7 преди 9319dd64d5cdef851841c091f30424faa2284c31; 8ad342a863590b24ce77681b7e081363fb3333f7 преди 6cf31716b77a71c0d634106f4f3951377b8dc6dc; 8ad342a863590b24ce77681b7e081363fb3333f7 преди 02bd02c585293634b213b142cba63cbf77891f6b; 8ad342a863590b24ce77681b7e081363fb3333f7 преди e873c74132f0c5f1452816cd9bb26208f0bba1e1
    • Linux Linux: 5.6; преди 5.6; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

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    Първоизточници

    CVE-2026-98343: Linux | freedomonline.bg