CVE-2026-89993 — dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Initialize IRQ data before requesting IRQs dw_edma_irq_request() passes struct dw_edma_…
Published: 2026-09-16 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Initialize IRQ data before requesting IRQs dw_edma_irq_request() passes struct dw_edma_irq to request_irq() before dw_edma_channel_setup() fills the back pointer. A shared interrupt can therefore enter the handler with dw_irq->dw still NULL, leading to a NULL pointer dereference. Set the back pointer before installing each handler.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7