Vulnerability in Linux

CVE-2026-72476

In the Linux kernel, the following vulnerability has been resolved: dmaengine: Fix possible use after free In dma_release_channel(), check chan->device->privatecnt after call dma_chan_put(). However, dma_chan_put() call dma_device_put() which could release the last reference of the device if the DMA provider is already gone and hence free it. Fixes it by moving dma_chan_put() after the check.

Affected products

  • Linux — versions 0f571515c332e00b3515dbe0859ceaa30ab66e00, 2.6.30, 0

References