CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's DMA engine, specifically the dw-edma component, where concurrent access to the DONE_INT_MASK and ABORT_INT_MASK registers can lead to race conditions due to non-atomic read-modify-write operations. This can result in unpredictable behavior in DMA channel operations, potentially causing data corruption or system instability. Organizations using affected Linux kernel versions with DMA functionality should prioritize addressing this issue to ensure system reliability and data integrity.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Add spinlock to protect DONE_INT_MASK and ABORT_INT_MASK The DONE_INT_MASK and ABORT_INT_MASK registers are shared by all DMA channels, and modifying them requires a read-modify-write sequence. Because this operation is not atomic, concurrent calls to dw_edma_v0_core_start() can introduce race conditions if two channels update these registers simultaneously. Add a spinlock to serialize access to these registers and prevent race conditions. [den: update dw_edma.lock comment]