CVE-2026-93168 dmaengine: xilinx_dma: Fix CPU stall in xilinx_dma_poll_timeout

In the Linux kernel, the following vulnerability has been resolved: dmaengine: xilinxdma: Fix CPU stall in xilinxdmapolltimeout Currently when calling xilinxdmapolltimeout with delayus=0 and a condition that is never fulfilled, the CPU busy-waits for prolonged time and the timeout triggers only...

Linux Kernel Security Vulnerabilities

The Linux kernel has a security vulnerability. This vulnerability arises from the fact that when calling xilinxdmapolltimeout, delayus is set to 0, and the waiting condition is never satisfied. The polltimeoutusatomic significantly underestimates the time elapsed, resulting in the CPU being idle...