CVE-2026-89941 iio: buffer: Make IIO DMA fence release RCU-safe

In the Linux kernel, the following vulnerability has been resolved: iio: buffer: Make IIO DMA fence release RCU-safe The dmafence documentation states that if a custom release implementation is provided, the dmafence object must be freed in an RCU-safe way. The current iiodmafence implementation...

PT-2026-93581

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the iio dma fence implementation. The problem occurs because the implementation uses a lock embedded in iio dmabuf priv, but the iio dma fence can outliv...

PT-2026-93582

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the IIO buffer implementation. The iio dma fence implementation used kfree for its custom release process, which violates the dma fence requirement that...