The fsl edma events store a pointer to a struct fsl_edma_engine in the ringbuffer and dereference it when a log entry is printed. At this time, the pointer may no longer be valid. Event injection can be used to trigger a crash: $ cd /sys/kernel/tracing $ echo 'value = 0' > events/fsl_edma/edma_writeb/inject $ cat trace The log output needs only edma->membase. Add a membase field at the end of the event and use the new field for log output. Keep the existing fields for backward compatibility. Fixes: 11102d0c343b ("dmaengine: fsl-edma: add trace event support") Cc: stable@vger.kernel.org Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Martin Kaiser <martin@kaiser.cx> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260718130024.341243-1-martin@kaiser.cx Signed-off-by: Vinod Koul <vkoul@kernel.org>