CVE-2025-40144 nvdimm: ndtest: Return -ENOMEM if devm_kcalloc() fails in ndtest_probe()

In the Linux kernel, the following vulnerability has been resolved: nvdimm: ndtest: Return -ENOMEM if devmkcalloc fails in ndtestprobe devmkcalloc may fail. ndtestprobe allocates three DMA address arrays dcrdma, labeldma, dimmdma and later unconditionally uses them in ndtestnvdimminit, which can...

CVE-2025-40144

CVE-2025-40144 relates to the Linux kernel nvdimm subsystem: ndtest may NULL-dereference under low memory if devm_kcalloc() allocations fail. The fix adds checks for three DMA address arrays (dcr_dma, label_dma, dimm_dma) and returns -ENOMEM on allocation failure, routing to a common error path. ...